Checking for rust … common areas?

Great points all around on checking for rust! I figured it would pretty tough to do online with a bunch of photos. I'll spend some time going through the restorations threads to get a better handle on what rusts the worst (aside from "all of it")

I'm looking at '73s out of sentiment. My dad drove one for a long time when I was a kid and I was disappointed when he sold it off. (his subsequent cars were never as cool–and still aren't)

I want to fix one up like his was; slant six, triple black (with a few improvements, like EFI, power steering, improved brakes…) It would be really cool to give it to him as a sort of retirement gift. He only bothers with AM radio, so I could leave that stock lol

I know it's not the most exciting project car around, but I think I'd have a lot of fun working on something that carries some personal importance.

Glenn,I might be able to use that as leverage on negotiating a price. Of course that could be totally rotted out underneath too. the three pics don't show a whole lot.