Thanks for the replies! I have updated the thread. I'm giving up on the whole Mini ITX idea since the parts selection is so limited in my country (and very expensive).
Yeah there's even a build on PPP using this exact idea.
I can't find that case here, unfortunately. But the more we talk about Mini ITX the more I realize I'll probably have to use another PSU, very sad since I love my current one. Thanks!
UPDATE: after reading some replies I think I'm going to try to keep the mATX form but find something smaller than a SG10 (no GPU)
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I have a close to no compromises SG10 mATX build and I want to build something smaller. This case is AMAZING and...