scratchbuild E-savage derived RB3

[jsr]

That's a simply beautiful E-Savage!

Are you going to run 3s or 4s? In your first post, you said 3s. Then later, you said 4s.
If you're running 4s, I wouldn't recommend a 3000kV motor or anything near it. If 3s, then you're fine.
If you're running 3s (which is really enough for that truck), a Tekin T8 4030 motor would be great. Or as already mentioned, the CC/Neu 2650kV motor. Tekno also has their Lektron motors that are about 60mm long, which might fit perfectly in your E-Sav. The Lektrons also have built-in mounts for 40mm fans.
If all else fails and you can't find something you like, I have a Medusa 3300kV 3650 motor I don't use (just got it today).

BTW, are you on E-Savage.com?