Ok, given my experience, I would suggest to use a MMM, and a medusa 36/60/2000, in the V2 line. Run that on 5s lipo and you will have a cool running system with plenty of power for a buggy. I run a 36/60/1500 on 6s lipo in a hyper8 buggy and it does fine. Very nice motors for the money. I would stay away from maxamps, as there are other battery choices that will perform better and cost about the same.
So my suggestions, with links:
MMM :
http://www.rc-monster.com/proddetail...steresc&cat=21
Medusa 36/60/2000, found on this page:
http://www.medusaproducts.com/motors...MR036060XXXX-5
Battery :
http://www.rc-monster.com/proddetail...5S_3700&cat=18
The rcmonster store can also provide you with the motor mount and battery tray, plus the pinions and other odds and ends that you need. You could buy a neu 1512 motor from there instead of the medusa, but the medusa is on special right now.