Check out this thread in the FAQ: http://www.v11lemans.com/forums/index.php?showtopic=565
Don't know if all the links still work, but it's worth a try.
Don't even bother... sounds like marbles in a large paint can. As far as the looks of the QuatD: the classical bike design of the V11 needs some proper mufflers that stick out
Aftermarket passenger footpegs? Don't think there are any made. My guess is you're looking for rubber padded pegs? Just take the OEM one to a generic bike dealer and see what they come up with.
I use the ESR510 now and it works like a charm. However, the voltage at 5000 rpm isn't as high as with the OEM regulator. It's plug and play and I like that :-)