PS. I was in a similar situation, I was running HAOS (before the UEFI requirement) on an old Zotac net-top with a pre UEFI bios. I forced me to look for other options as well. I got lucky I think, I found a used NUC NUC5PPYH for < 70 usd. on Ebay minus memory and ssd, got both for about 50 usd.
