I just purchaced a ERBE

[SV6000]

I would love to put your mates savage against my REVO G3R CF
http://www.rc-monster.com/forum/showthread.php?t=22158
Than we will see who cant keep up with who.

As far as parts i would stock a couple of shafts and get the steel CVDs for the transmission output shafts. As well as some spare A arms (stock or RPM) and some axle carriers.
Handling wise i would get some stiffer springs i think the ones to get are black and tan but some one else can chime in with the that. I ended up buying one set of everything so that i can tune. You may also want to get the tekno sway bar set.
From here you will may want to change shock oil and pistons