I think this is the problem with the market now.

Prices for cars are all over the place and very subjective.

I've looked for a complete Challenger project that doesn't even run and I can't find one under 10k.
But if I tried to sell one I would get offers for 1k.

If the rust was just the roof under the vinyl top and nothing more serious than typical floors and trunk then I would go close to 10k.

But I would heave to see it on person.