OK to stop your craziness Ivan, i have a spare set of M04 halfs, everything (i think) for the M04 chassis. Let me know if ya want to go the M04 way (unless you like tinkering! lol) I was going to build one of the M03's as a 4, but if i do decide to do that later, i can always buy more parts (addict here.... yes) Now you can put a 21 in it and have fun. I honestly thought id see a big advantage with the 04 having the 21t pinion, but the cars drive so different, the straightline speed isnt noticible, well with the silver cans anyhow The M03R, M03 (killer) and the M04 alfa with crash damage are all ready to rumble except for one painted shell. Here is hoping I can make it this sunday!