I bought an E-Revo off ebay a few weeks ago. Some of the mods are as listed:
GorillaMaxx G3R alloy chassis
Integy alloy bumpers and skids
Alloy Rockers and Shock towers
GMaxx single speed tranny
NEU 1515 1y electric motor
MMM ESC
Futaba 3PM 2.4ghz
2x Tanic A123 6s packs
Hitec 985MG servo
Pro Line 40 series Bowties
RPM True track rear end
Since getting it I have changed the rear arms to the Traxxas extended ones.
Fabricated a new ESC mount (the original one was above the rear shocks) and fitted the wing.
This truck is an absolute animal, on the 6s A123 packs it absolutely flies, currently running 20/66 gearing, but will be experimenting to find the best ratio.
Here are some pictures of how it looks now its all done!