Read till you are too tired to read, and then read some more. Then watch videos in your time off from reading. There are several articles/videos detailing a ground-up approach, start there.
Then ask informed questions here on the forums when you have some background info and enough knowledge to form a specific question about a specific problem, and we will help.
Then get into building mining rigs and when in the process you actually stuck (just like everyone does) ask for help here, and the good people of this forum will help.
But if you want someone to collate all information and serve it to you on a platter, sorry, the internet's changed in the years since you've been gone

Tch tch ... I find it sad that people have to call others Idiots to validate their poor purchasing decisions

Im sure the timings differ and that could boost performance, but considering the Vega 64 can do 43mh/s maxed out, just tighter timings cant be pushing a 90% increase in peak performance, can they? (bear in mind these are stock timings, so they wouldn't be as aggressive as the STILT's straps).
Memory bus can be an additive factor, but then the GTX 1060 run a 192bit memory bus and outperform the 256bit RX 470/480/570/580 cards at same clocks (without bios mods ofcource).

Something tells me the Vega 56/64's are crapping out due to some other reason ...

Here is BBT's video doing a full roundup :

https://www.youtube.com/watch?v=CW8LOQ2yvO4

This card ofcource does not make economic sense, but it does show that HBM2 even at 850mhz stock clocks can push 70+ mh/s on Ethash, and upto 83mh/s when overclocked even in the preliminary tests done by BBT Carter in the above video.
What I'm curious about now is, what the hell is keeping the HBM2 on the Vega's back? Isn't all HBM2 made by Samsung? That would rule out different manufacturers and different timings as the cause.
Anyone have any insights into this?

Antiminer Pro's :
1) Significantly cheaper than a full 6 GPU build generating equivalent revenue
2) No skill required to setup, plug and play so very noob friendly
3) Little to no maintenance required
Cons :
1) Can ONLY mine one algorithm, if that drops in profitability you can not switch or sell, you are stuck with an ASIC that cant do anything else.
2) Prices seem cheap, but when you add in import customs and shipping duties, cost of power supplies etc it isnt so cheap anymore.
3) A measely 6 month warranty, compared to 3 years on GPUs, and you have to handle shipping it back to them yourself.
4) LOUD as HELL, so you can not have these inside your house, even in the Garage is too loud for most people.
5) Little to no resale value, so ROI calculation for an ASIC is against its total value. For a GPU based rig, you only need to cover only ~30% of the Rig value depreciation only they still have a use, and resale value. This makes ASICs take longer to ROI.
6) Every new ASIC upgrade demolishes previous ones, making them almost unprofitable to run, and a couple new upgrades are expected in the next year.
7) You need to place the order and pay the total amount 2-3months in advance atleast, and there more delays even then, while a GPU rig you can build tomorrow.

You measure the wattage each machine is running at when you build it, with a wattmeter. From there on you can calculate KWH - a machine that was consuming 800W would end up using 0.8 x 24 x 30 = 576 Units of electricity a month.

Not the setup, the issue is your absolute lack of knowledge. GPU based mining is not for people who aren't already familiar with PC hardware. It's best done by people who have built PC's in the past.
No one can help you with the questions that you have because they are VERY basic.
This also means you will not be able to handle the massively more complicated stuff about mining that you will have to tackle in the future once you have the system assembled.
So, I advice you to sell your hardware and buy an Antminer or buy coins and trade. Its more profitable anyways.

Lets say you could, what would be the point? A Ryzen 7 is making $4 a day, how much do you think a lowly ULV Dual core cpu would make? And EVEN IF you can get multiple Ryzen 7 level "CPU Blade cards" with the CPU's on proper cooling and the right kind of power delivery in there, I cant imagine them costing anything less than the cost of Ryzen 7 + 100$ so about $400, so, again, why?
Why not a Vega 56? Or two RX 570?

Sell your hardware while its new, please do not get into mining, this is clearly not for you.

It all depends on the cards you choose, with 4 Vega 56 GPU's you can easily more ~$30 per day. Check out the website whattomine, itll take you a little while to figure out how to use it, but its the best single view snapshot of all your mining needs (GPU type, hash rate, power consumption, earnings, what coins are profitable etc).

Dude ... dont give noobs ideas ... next hell ask you how to cool with Liquid Nitrogen 

~194mh/s with the 7 RX 570 cards.

You do know that claymore runs amd and nvidia in a single instance perfectly fine?

Ritchie Street or SP Road. No, unfortunately you cant check type of memory on cards before buying so its just luck.

That is an interesting looking board ...

No.

That PSU has 4 PCIe cables that have 2 x 6+2 ends, for a total of 8 connectors. Plug in any the 6+2 connectors into the 8 pin slot on the GPU, leave the 6pin slot empty, Rx580's can work without it. So you can connect two GPUs on one cable effectively.

Do not use the adapters that come with the risers, you need to connect directly to the PCIe 6+2 cables for the risers as well, since you bought PCIe powered risers. You can connect two risers on one cable effectively.

You can connect the Monitor to either the motherboard or the GPU, either of them works. But for the H81 chipset motherboards, its recommended to disable the onboard display, or you it will not allow you underclock the GPU's

You probably should not be mining if something as basic as connecting an SSD confuses you.

Cool and all, but switch to XMR/Electroneum ... running Ethash on Vega's is almost criminal, seeing as you are effectively halving your potential revenue.

No.

How about he comes over to your place and does it all for you, how does that sound?

How in the world did u find enough connectors on a 450W PSU to connect 6 cards???