I do not see any reason to continue conversation with you on this topic, as you are making big offtopic out off it (pointlessly so)…
as I’ve written whatever I wanted, and I’m good with it. If you have issues with me feel free to hit me up with private chat or whatever you have there, else you can go about your day (nicely, and politely said).
I’d suggest grabbing one of the ex-business i5 3470/4570 powered SFF machines off eBay.
They’re a complete package, cheap(£80-100 here in the UK), compact, typically come with a Win7 license, and will blow the socks off both their current hardware and any new alternative. (With a small SSD for the primary drive obviously)
I really wouldn’t consider them significantly less reliable than new. Though if you do want some kind of warranty, there are refurbishers who’ll sell you the same spec, but with 6-12 months warranty & support for a slightly inflated price.