You can probably find adapters to fit a 1/8 pinion to a 2mm shaft. I bought a used mini t that had a 1/8 bore pinion on a 2mm shaft motor using a crappy plastic tube to change the pinion bore size. I doubt this set up would work for brushless power, you would need a metal adapter at least. Even with a 9-10t mod1, that pinion is going to be almost as big around as the motor. And for a vehicle that heavy, I would look into something with more torque. A feigao 300 maybe, or even a 380.