Hi,
I've been thinking about building something like your project and currently working on a little rig with 14*XU4s in to test things out before going big. I'm in the same situation as you, not very rich, but want to build something to learn and have fun, and maybe even make a profit
I noticed you bought the HC-1 machines, and I was just wondering if you've asked Hardkernel about the upcoming MC-1. If you missed this I feel sorry for you since they seem to be exactly what we Odroid-miners want. Or perhaps you have a reason to go with the HC-1s instead?
The info I've found online mentioned MC-1 release in September but it seems like it's been delayed. I haven't contacted Hardkernel about it yet since I still work on my "standard" XU4 cluster. Check this article out:
https://magazine.odroid.com/article/odroid-hc1-and-odroid-mc1/Yeah, I've asked them directly. MC-1 will not get released soon, everything is delayed and they don't wanna tell us anything. Probably is canceled. HC-1 because of less noise and more stakeable.
Also, HC-1 are moooore easy to resell, who atleast they have a sata plug
I had 24 xu4 in the past. Sold in 3 days