Welcome back on the forum OP!
..
I'd even like to be a reseller in Europe for you if you're interested, if after I've been able to test them everything's OK, I'd be sincerely interested.
I'm currently in the process of learning how to make Bitaxe myself, a DIY sha256 ASIC based on BM1397 created by Skot (who replied to you above) that reminds me a lot of what you're describing. Feel free to check out this Github if you're interested:
https://github.com/skot/bitaxeDon't hesitate to contact me privately if you'd like to chat, and I wish you all the best!
Its too early for resellers, first comes the manufacturing, and I've sniffed enough leaded solder and flux in my life to even attempt doing it myself

Bitaxe is cool, I wish Skott all the best. He started his project roughly at the same time as I did, but I only discovered it 6 month ago (I was too busy developing things to search github, although I did search github before I started working on it). His hardware should be easy to implement in my miner software, all that is needed is modifying the routines to use his dac.