Mugen MBX4-RR Conversion!

[BL_RV0]

Hey guys, new project here. Just bought this:
http://www.rcuniverse.com/market/item.cfm?itemId=412096
Planned setup will be: Medusa 36-50-2200, MM, 5s on 12/46 gearing with the Mugen MBX5 mount and custom battery tray. Here's the exported values.
Differential Ratio: 3.3333333333333335
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 12
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 4.6
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.007
Spur/Pinion Ratio: 3.83 : 1
Total Ratio: 12.77778 : 1
Tire Circumference (inches): 14.45 inches (367.06 mm)
Total Motor Speed: 40700 RPM
Vehicle Speed: 43.59 mph (70.02 km/h)
Estimated Adjusted Speed: 41 mph (66 km/h) - 6% loss
Effective KV Value: 2200
KT constant: 0.61 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

Give me your opinions. Pics will be taken upon arrival.