if you have a dead PSU, please PM this account with your Bitmaintech.com OrderID and what happened to the PSU, please take some photos with your username on it.

Questions regarding using a different PSU while the original PSU is dead. Yes as long as it is a strong enough PSU, you can do so with your own risk. 

S4 is designed specific with this PSU, so if you use any other PSU, please consider how much watt each line would pull and power cord gauge)  If you modify PSU to fit with the connectors on S4, it could be hazardous to splice the wire without a proper process and it may create a fire hazard or electrical shock hazard.

It's not ok.
Your diff is not good (64) and your pool won't reward you correctly.
You must set the minimal difficulty to 2048 in your pool settings. If your pool doesn't allow that,
you have to change the pool for another one (bitminter, BAN, slush, ...)

Looks OK,

But I would advise to also set-up back-up pools 1 and 2. If your primary pool 0 goes down for whatever reason, you at least don't lose mining time (I am on a pool with several pool locations so all I did was set up the same pool three times, but with different extensions like: *.US1, *.UK1 and *.NL1...

Further more keep an eye on that "ASIC status". If those o's turn in to x's then those chips aren't functioning at best. If too much x's show up a hard reset should do the trick most of the times...

Good luck and enjoy!

I have purchased a number of units from them with swift transfers, they have always been good about it.... Suggest you email them with the swift details and your order number so they can match them.

It's fast to pay with BTC. It's show paid after an hour if you have paid with BTC. If you don't have any BTC, you should buy it at the exchange and make all transaction in BTC.