let me know if you find them, I'm also looking for 4
I know there aluminum parts are pretty rare, the shock bushings and shock colars are the most common (I have a set of each) but they also have a really cool body mount so the back of the body mounts with 1 pin on the top center like the B4, they also have pivot blocks front are rear (I have a rear on, uses a set screw to hold the hinge pin in) and they also have a battery strap. Lots of cool stuff but if you can track it down it can get expensive, I could of gotten one of everything for about $150 here, it would probably be over 100 pounds for you if you can find the stuff.