I have fiberglass fenders for 2002s, I am currently in the process of having the trunk and hood done in fiberglass, should be ready in early Feb. I would have to double check with pricing for the fenders though if you are interested. I also have a rear trunk lip available in fiberglass, it is very similar to teh Alpina spoiler, but it is based on a rear trunk lip of 3.0 CSL
About the bushings, you might have to order in the states for those. Ireland Engineering and also BMP Design have decent urethane bushings for your application.
As for rocker panels, kinda stumped on that... BTW how much are you looking to get for that engine?
Hope this helps ya dude