Ive done it to mine. The rear mudguard/fender was a GRP one from Catbypass Dave but I have had an identical one from a stock metal part but cut down, and ive also had a standard mudguard/fender "reduced" down - ie the stock mudguard chopped down and stocktail light moved up.
Anyways
Heres some pictures of mine - the side plate and light came from germany and was for a Yamaha 1700 Warrior...