I'd be wary about spraying matte.... (I'm no expert painter but I know paint), if you turned that shiny / blotchy etc etc the only thing to do is spray over again, either by a pro, or just with rattle cans.... Personally if I had to choose I'd go down the wrap route.
However, if your gonna do a restoration, then I'd paint properly from the start, just my opinion of course but it really finishes the car properly.
Pontio - Yep, thats exactly the RR. Theres tonnes up this way... matte white R8, countless black Ranges, beemers, mercs, seen the matte orange Porsche as well which actually looked pretty good in the flesh.

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