More update:
I installed the MMM today. I don't like the TeknoRC mounting position so I fabricated my own mount using 3mm aluminum.
Stock on right side, my creation on the left side:
After it was painted.
The holes line up with the rear shock mounts. I used 25mm spacers and 2 40mm caphead screws to mount it in place.
With industrial velcro:
I also lengthened the MMM switch wire:
My biggest concern. The positive bullet connector is too close or either touching the heat sink. I can't install a heat shrink around it.
The MMM temporarily mounted on the truck. The ESC sits lower now instead of being on top of the tranny.