I have a 1972 Plymouth Scamp that's been sitting for 25+ years, how much is it worth?

There’s also a tag inside the drivers front fender. You’ll want to cover the VIN on it(it will correspond with the windshield VIN tag) and post it with pictures, too. You’ll also want to inspect closely around the rear window and feel for any soft spots underneath the vinyl top to report, too. Looks like a good candidate for a Big Block swap, though!