I'm really going to muddy the water up here. What yould you do on a cowl plenum car and factory headers. They were in the trunk and now they are on the car and thats not the way it left the factory. They were sold and have a rpo # so they were intended to be used on that car. Would it be ok if the car had a dealer invoice stating what it had. What happens when you didn't have the invoice
Then you would have to leave off the Center caps and trim rings as well...
Anyway... there are way too many over restored cars around... none were as nice as the restorations... too many guys want them perfect... not the way they were from the factory.
I would rather see them restored with the imperfections... you would see alot of people falling out and saying this or that is not right... or the paint doesn't match from door to fender...etc