AFAIK, carbon fibre has a smooth finish, so the original texturing of the face would be lost.
I thought that it was clear from my post (probably not, my fault) that it would be the original faces that I would be trying to emulate. I only mention 303 because we now have one less source for modified bits, prompting me to make this public.
More news on this as I get it folks. The guy I'm dealing with will be back in the area of his works where he will have access to this process fairly soon. As soon as he is, I'll lend him my empeg and we'll see what he can come up with.
Not sure at this stage, but I might see if he will look at the handle too, but this is a secondary consideration at this point. Not sure if his process could make it strong enough to be as reliable (!) as the OEM handle
More news as it happens (but don't hold your breath, this may take a while).