possible scamp for sale

I really don't think it would bring that much in this economy but you never know if the right person came along it could happen. If you don't fix the transmission you might get $2500 out of it. Now keep in mind I am talking about Oklahoma prices and Colorado may be a different ball game.
Honestly even at 2500 with it completely done and working tranny I'd probably walk. IMO It's a 75 and just not desirable to me. I would say if your going to look at selling it go to a wreckers and find a good working 4 speed for as cheap as possible and do the wheels for as cheap as you can. Then price it. I can't see you even getting a third of the money you've got into it.

I've done the same man. in high school we picked up an 84 ramcharger for me to drive. did some fixing, I had 2 motors go by way of timing chain death, so I had a 250 dollar roller 318 in it from a friend of mine, I put in new belts, battery, alternator, gaskets, air cleaner, dropped the tank and put in custom stainless steel tank straps a custom gas tank skidplate, painted the thing, and put in about 1500 into it. We bought it for 2400 4 years earlier and I got 1800 after I sold the thing a couple months later.

You really never get your value out of an old car. unless it's rare or desirable your simply not going to get it.