I've seen (and own) a Targa by bBurrago but haven't seen a coupe yet.
www.exoticar.com seems to have a huge selection of Porsche models. I don't have the patence to keep looking right now, but if they have an SC and 944cab, I wouldn't be surprised to see a 964 coupe.
Also, I can paint any model car. For the dicast cars, I completely disassemble them and paint in as much detail as desired. The last car I had done was a yellow 914 repainted black.