Take my 67 PMD Engineering car in my signature as an elaboration. 32 options..all there sans engine. Billing history lists it as $4,235. As it sits, the car is the atypical "roller" worth maybe 4k. With the PHS showing it is a PMD Engineering car (1 of 3 known to exist) is it worth more? Just as your 67...documentation is a strong suit to the right buyer. If I were to sell to a guy who just wants a project, I'd be lucky to get 3 or 4k. To a guy who wants the PMD Engineering moniker to restore it (albeit incorrect) it could fetch a lot more.
What I'm getting at is waiting for the right buyer with the right cash at the right time. I would rather let my 67 rot than short change the prominence.
Si Vis Pacem Parabellum
1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.