If value is your concern here are my 2 Cents from German perspective - and you might want to consider as C4 and especially ZR-1 seems to gain appreciation over here in Europe and a potential buyer might be located here... US repaints have an extremely bad reputation over here. We call it the "sales shower" - dealer pours some fresh paint over a crappy car to turn into a shiny jewel.
Unfortunately preferably these cars found their to us, as many (stupid) buyers decided to import based on internet pictures.
I'm very sure that there are true professionals in the US who make a perfect job has they are here, so make sure to have it done by one of them, ideally with a photo documentation of the work.
Or, even better, try to have it rescued by a professional polish.
IMHO as long as enough comparable cars with OEM paint are available a re-paint will considerably affect value.
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