If you're into this and want a cheap and stable system you could look into buying the Asus chromeboxes that Google sells for their 'meet' hardware, they're pretty neat, can be upgraded to 16G and there are some that have an i7 in them, you can typically get them at surplus prices because the sellers usually don't know what to do with them. The internal 32G SSD can be upgraded as well to a larger format one.

Note that the write protect switch is on a different location on the motherboard than indicated in most docs, it is a screw with a bunch of solderpads on it, look for a large diameter very flat screwhead, that's the one. Just unscrew it and leave it out.