$1200 strikes me as low, especially if there’s a color change involved. Would probably be a quicky job with corners cut on the prep. I’d probably either spend more and get a better job done or just drive the car as-is.
You can save a lot of that if you do your own prep, then shop around for someone to do the paint work.
For a serviceable older car with paint problems, you need to protect any exposed sheet metal. Sand, prime and blend in matching paint in the problem areas and don’t worry about the rest. You’ll end up putting more into a quality respray than the car is likely worth.