Dave
I totally understand your thoughts on selling. I am fortunate to be a little younger and in pretty good health but just recently thinned my bronco heard and parts. Sold my 1970 to a fellow member, and sold off most of my parts to another member. I realized I just didnt have the time, space or passion I used to have. Knew someone else would get more use out of it than me. I didnt sell them for the money it was more a mental thing. I kept my 67 just because it has been such a major part of my life for the last nearly 20 years and unless I really need the money or I find something else I have to have. I just want to spend the most time with my son and that means fishing, not laying under the bronco!
As for pricing your rig... that is hard to say just a solid rust free body with nothing else can bring some serious money. Considering everything else you have I would say in the high $20s . If it were all together and running in the high 30s. I would suggest putting a solid list together of what you have, what has been done and a few good pictures and list in on here with a high number on it. Then let the people that are interested in a project like that chime in. It may be just what someone is looking for.