There has been talk previously (from me and others) about retrofitting Eurpoean style footpegs and rearsets to the North American 650.
Looking to try and do this on a budget I've just got a set of Honda CB650 SC 1982 aluminium peg mounts and they will bolt right on. It looks like the existing welded up exhaust and passenger peg plates will have to be removed to faciliate installation. The plates have the same peg mounting positions as now, so even if I did nothing but mount them as they are it would prettify that part of the bike. To make them into a rearset appplication will involve some jiggery pokery and faffing around.
Of course you could just buy the European kit from the get-go and have at it....but that would be far too easy, wouldn't it!!