just my $0.02, but there is always a market for these trucks. My guess is you will get some low ball offers, that you will have to decide if you accept or not. It is unlikely that you will find someone with the same vision you did for the truck, so they may go back and change some of the work you did, driving the price down. Personally I am always skeptical of something that does not run, and a basket case will leave potential buyers wondering what is missing.
Explore your options, maybe do some of the "lighter" work yourself, pay for the more labor intensive work. See if you can get some help, kids, grandkids, ask around to see if there is a local teenager who has some ability, but just needs guidance. If you have a local Vo-tech school, ask the teachers there, they generally have a good idea of who has talent and ability. It may be an opportunity to share your knowledge and help someone continue in their learning.
Good luck with your decision
Jon