Unless you're very lucky, there are cheap cars for 2 bags, but very few good value ones. I'm excellent with the spanners and have all the time in the world, so buying something for a grand or fifteen ton, and spending a few hundred making it mechanically perfect is perfectly viable for me. If not, chances are you'll simply be buying someone else's age, mileage and trouble, with no cost effective way out of it.
It's not ironclad, and you can get lucky, but as a general rule there's a very good reason 2 grand cars cost 2 grand. Good luck.