There are some NOS parts available for the VW TD version by CMC/FF. A few examples are hood and engine cover, wind wings, bumper guards, front fender parking lights, rear tailight lenses, door hinges and a lot more. If interested contact me to see if I have what you may be able to use.
I worked for CMC for years before they acquired FF. The sales brochures for all the model replica's we made have plenty of my pictures in them. My TD took a long time to finish however now it is.