been there, done that.... ran it once then headed back up to scotland where we don't play with toys...
Mine is based on a hybrid of the Yokomo MX4 and the Kyosho RB5 (metric cars FTW)
http://oople.com/forums/showthread.php?t=42080
went well, i was rusty as hell driving!
Needs fixing, and more droop at the back and it'd be reet. Planning to get it running again, so I need to get -
new rear shock tower to lower top shock mounting positions (Will be home made so will probably look pish)
new rear belt (old one was from a well used MX4 and was bobbins)
new rear diff pulley (see above, it killed it)
adjust motor mount to give option to run bigger pinions