That mount looks great but it needs rear support. I have ripped the end bell out and stripped several gears not having the rear supported.

I was using Mikes heat sink for a support and lay the motor right on the chassis for support over the hole motor. I never stripped a gear or knocked the end off when there was rear support.

Also if you lay your batteries sideways you will have alot of room. There is enough room next to the diff. to get a 5s 5000 mah maxamp pack in there without the rock guards.

By the way the buggy looks excellent.