It seems like a reasonable deal, however, its not a great one and there are several things going against you on this gig. The fact that its a 74 is a big issue for a lot of buers who won't accept anything new than '71, its apart, there's no engine or trans, and it still requires continued panel surgury are all major issues to potential buyers. Yes, there are guys always looking for projects, but their numbers a smaller than turn key buyers and they tend to look for bigger bargains.
I'd certainly recommend you post it as many places as you can. I think you've missed the major shows that you could potentially sell it at, but you may want to look in to those venues. Your descriptions seem honest and upfront, so perhaps that will get you some lookers if you can get it in front of enough people.