Originality-does it matter?
I bought my cars - but one - about nearly forty years ago, when they were even in Europe old and neglected (and cheap). But they were mostly untouched and had a slight day-two look. And this look I kept - they are time capsules of the 80s for me.
They are still well maintained and always driveable - in the heat and in the rain.
Driving my cars is still an 'escape-thing' for me and always a time ride back to the days...
Therefore I keep them as original/stock as possible - and my son was also 'A-Body incfected' and has now his own three A-Body rides...