I just picked up a really clean , original , untouched 1978 Monza Promo for next to nothing , and am at a 'crossroads' as to "What should I do ( or not do ) to it ?" Truly , what I'm after is a simple detailing of the promo ; painting the trim , detail painting of the interior , wheels , etc. , while not compromising the integrity of the promo it self . Looking for opinions , and examples of refurbished / modified / detailed promos . Thank you .