As a owner of a beak car, Unfortunately I see this a lot:
Beak car guy wants to see a high amount for his ride that isn't pristine, it doesn't happen, he gets pissed. Then he asks for advice why not, and when people give it to him, he gets defensive when the hard truth comes out. Wtf?
Get over yourself.
It all comes down to realistic expectations: people have it rough now a days and the last thing on their mind, minus a few is buying a sports car. Especially a old box that has rust, where else is it rotting? Experience tells me quite a few hidden places. Directly behind that door pillar, and the latch reinforcement comes to mind right off the bat. Look at my build thread. Great example.
Because you have emotional investment in this car it makes it worse, and, owning this car that long you didn't think to sell it when things were better with the economy? Damn.
Lastly, Take this winter to fix some issues, kill the rust at least, spray some rust converter or *something* it grows like a garden. And is expensive to fix if you have someone else do the work.
It is what it is, you'll get glad in the same boat you got mad in.
Good luck.