Hi, just bought a cb550 four , have a rd 400 and spent a fortune on it but the alternator has just went, so its on gum tree as im not spending any more it, aaah, had honda fours when i was younger, so im going to make a nice 550 from the 70s, clip ons, 4 into 1,etc,the bike has ugly comstars on it, but the guy i bought it from has the hubs, they need new rims and spokes, has anyone done the hubs with alloy rims and a twin disc coversion, what is involved, thanks tam.