First off, the value is in the details here. Just for starters you have a first-gen Super Record RD which is worth a couple hundred at least to collectors. The panto bits look like they'll clean up well. The paint doesn't look too awful to me. The biggest paint loss is under the shell, not seen in normal use. Chipping on the stay from the chain is an occupational hazard.

I would not repaint with the idea of getting a return on your investment - it just doesn't seem to work that way. I'd be all for it if you were doing it for yourself (your bike, your choice kind of thing), but leave it original and let the next buyer decide.

Looking for more money, part it out. Keep it together if not. Oh, and that chrome will probably clean right up as it looks much like something similar I dealt with recently - and mine came out great.

One other thing: I see two locknuts on that headset - that would mean a longer than normal threaded portion of the steerer. I wonder if the fork is original? It also uses a recessed brake bolt while the rear is exposed. That is strange to me.

DD