I may be wrong, but, I think the replacement wings would come from a '59-'65 150. In 1966, the 150 wing was changed over to electric flaps and the wing structure was slightly changed for the flap motor.
Loy, How much are you asking for your project and do you have any pictures?
The engine alone is worth more than the 9-10k offer from salvage. Some folks irresistible appetite for stealing something from somebody is of no tact. Hopefully, you can fetch fair value for this project. Sounds like you are not desperate to sell.
Good luck.