Hey Aqwut, why not go with the dual 1527's and a dual-belt system? If I refer to the gear on the center differential or whatever it drives as the spur gear, and the gear on the motor shaft as the pinion gear, then why not have a very similar layout, except with places to mount two motors, instead of one, like the E-maxx motorplate, and have one "pinion" be farther out than the other by mounting the second motor farther forward by the width of one belt to avoid the belts hitting. Then have dual "spurs" (one right in front of the other,) hook up some belts, and you're ready to go. I hope this will give you an idea or two.
