I would suggest a RB Concepts TM323... 16/36 gears, RPM arms, P2 rockers... pushrods if you want. FOC kit... and to bling... get some wheels/tires. [8D] That should be pretty close to $400... depending on where you get it... and what you get wheels/tires can be expensive if you choose bigger ones... or more expensive ones... I was looking at some HPI 8-spoke rims for $22 for set of 4... and Losi Zombie tires for $58 set of 4... but, if you just want some stockers, you can find 'em on eBay for $39 or so.