You asked for brutally honest, so here it comes...
I don't want to sound like I'm taking anything away from what you have there. It is absolutely gorgeous, a first class build, and every detail looks to be done RIGHT,, no 1/2@$$ anything I can see anywhere! So take my opinion with a grain of salt. It's just an opinion.
The paint scheme is gorgeous, but it's definately not my cup of tea
The infusion of leather and modern interior / seating is classy, but not my cup of tea
detailing everywhere on that chassis is rolling perfection, but that's something your into, not me.
What am I saying.... it's like when you go to the car shows and see the perfection, hours and hours of spit and polish, TONS of money spent on a project like a Volkswagon camper buss, or the perfect restoration of a 1947 gum-ball machine. You have to stare and admire all the hard work that went into creating this beautiful machine,, BUT,, it's someone elses dream, the perfect finish to the vehicle YOU wanted. Customs will always be a matter of personal taste. That is going to DRAMATICALLY limit your market, and hurt the bottom dollar. As boring as it may be to some, a letter perfect restoration of an original (anything) is always going to bring more $'s than a custom. Why??? becasue it's YOUR dream and not exactly how someone else might customize it. That's why were seeing these rediculous prices for cars rolling across the Barrett-Jackson block. The purist are paying so much for an original / restoration because THAT is something everyone can identify with.
As for $'s.....
I didn't even see what you were asking for it, but..... Throw all of your labor away, and if you get $0.50 on the dollar invested in making this beautiful machine, you'll be doing good. I don't care how it was built, finished or perfectly customized, you'll never get anything close to what you have invested. I have not known one person that 'made' money building one of these cars. It's just the nature of things. We invest our heart and soul, tons of cash, and someone comes along and offers us peanuts for our dreams. If you want to get a GREAT deal on a project, buy someone elses unfinished dream. That truely is just penny's on the dollar.
You may want to reach through the keyboard here and choke the living $#!+ out of me, but......... The one thing I see that may bring more people to the table to talk,,, a repaint. I know,,, you have this beautiful custom two tone paint and I'm saying cover it up!! (OUCH). But a nice solid color (nothing to flashy and nothing too boreing) will help move the car at a better price. More people will be able to identify with a solid color,, even more so if you choose one of the factory colors for that year. GM spent a LOT of money and research testing what people liked on that model. Of course that was in the 60's and our eye and preferances have changed. But were right back to that 'what will your buying market identify with'.
So there's my brutal opinion. Please don't punch holes in the computer screen, or send hate mail. I'm just offering my own experience with vehicles I've built that I probably couldn't give away for $0.10 on the dollar. But ya know what,, I did then MY way and I enjoyed the build, and driving them when I was done. All I can say is it is a VERY expensive hobby!