That's pretty sweet. I didn't know about the MGT gears. If I hadn't already upgraded my slipper to the XL5 I'd probably buy one of those gears. If you have the XL5 slipper you only need to buy the Revo spurs. They're already a direct fit to that slipper. That VXL diff is a good idea, though. Or, you can get the FLM steel diff from Mike.
If you mod the mgt spurs to fit the xl5 slipper you have the best of both worlds. The stock slipper sucks for a heavy/over-powered pede. I use the xl-5 slipper with jato spurs and 32p pinions and have not had a single problem. The mgt pinions just need the ctr hole enlarged to use the xl5 bearing, and 3 of the "peg holes" opened up to fit over the bolt bosses on the slipper hub, 2 minutes with the drill, at most!