The guy I bought my 400 block off of had one on ebay and it was in much worse condition that the one you described and it sold for 5k, so Im think at 7k....its worth it and at 5.5k its really really worth it. BTW, the guy's R/T was a 68 and needed new 1/4s, new interior, it had lots of rust, and didnt even run....I didnt think it was worth 5 grand, but the bidders seemed to.