I can't believe you haven't sold this car yet! I guy near me just sold his red on black 70 Challenger 318 ragtop, in similar shape(maybe a bit better) to yours, for $30,000 cash, and you can't sell an RT??? I think that's a fair price, just hold out a bit if you can. I guess, maybe a little more limited market? (I personally don't like convertables).
C'mon E-body ragtop guys!!!! Let's get this thing restored...