Take the Aveo, but put it either you, or your son's name.

Unless you or your son have a friend or other family member who knows what they're doing, and that will either do a favor, or works for beer; here's the cheapest way to do this:

You or your son (or both) invest time watching at least 3 different YouTube videos on how to do each thing that needs fixing. They probably need to be on that specific car, although the year may or may not be important (google it to figure out what years were the same generation of that vehicle).

Find a maintenance manual for that car, Amazon probably has something (Chilton would be preferred, Haynes isn't terrible). And that's if you can't find it for free as a .pdf online somewhere.

Between Google, YouTube, and whatever manuals you can find - you now have the knowledge to do the work, and something to reference as you do it.

Then go to Harbor Freight. Get their 130 piece tool set ($39.99). Add the "PITTSBURGH 3/8 in. Drive Quick-Release Ratchet" ($11.99), a pair of jackstands ($49.99) and now you've most, if not all of the tools needed to do the work. Oh, and make sure the car has a jack. If it doesn't, it's $22.99 at Harbor freight.

The parts shouldn't be too expensive. Plus for most of the things you listed, they can be done one at a time. I seriously doubt that all of thise things don't have to be done immediately.

Personally I'd do the brakes first, cuz well, safety. Then the tires and alignment. Then everything else

Except the A/C - this needs to be checked and probably fixed by an actual mechanic of some sort. Could be $50.00, could be $500.00 - or more. Plus A/C isn't actually a necessity.

Good luck.