I think the real question is
Would you sell your vehicle?
As you don't really have any control over what happens to your vehicle once it passes out of your hands, buyers will tell you what you want to hear when they're reaching for their wallet, but beyond that it's theirs to do with as they please regardless of historical importance/work done...
Lets face it your own vehicle is yours... (except that it isn't... it's probably had umpteen previous owners in the case of vintage stuff, each of whom had their own idea of what should be done with it/to it). The best we can be is carefull custodians of this stuff... and once fuel supplies dry up they'll all wind up static anyway