E maxx motor questions

I have recently picked up an e maxx 3905 roller. It has the factory servos a castle mamba max and a castle bec. I have a 2.4 radio so I was looking for motor suggestions? Looking for a mild motor that will not break the bank, mostly bashing in the back yard. I will be running on 4s lipo.

[mkrusedc]

One of the medusa motors or an ezRun.

[suicideneil]

For backyard use, a 60-70mm medusa ~2000kv geared appropriately would be good, or even a hvmaxx 6.5 motor- very useable power without being prone to crazy wheelies and what not ($100 new, half that used I'd say).