A while ago as sort of a base for a build I bought an HP Pavillon Slimline 400-344 Desktop PC so I could upgrade it over time, but me being generally lazy and not so tech-savvy completely forgot about it altogether, so I was wondering if anyone in this community could help me set up a build to upgrade this PC to gaming capacity, I'd just want to be able to run games on low settings nothing special, so I'd say a 400$ budget for this, if not maybe a little more, I could offer the best suitable build to be posted on this thread a
20$ giftcard of their choice once they post it

Thanks in advance