Vikki, Yow! We live in a 150 year old house with vinyl clad windows! I kind of did a "frame off" on it and used some aftermarket parts. That's what happens when you are in a hurry. It looks similar to original from a distance.
Hypothetically, any 1st gen, numbers matching, 400 convertible will fetch $25,000 if it's nice enough. The same car, not numbers matching, "might" bring $20,000 because you will not attract all the people that the numbers car will.