The Revo I just sold looked like this....
http://www.rc-monster.com/forum/showthread.php?t=23032
Same basic set up as the above post. It seemed v/well balanced using the 3905 trans and 2 batts.
1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S