Advanced motor frame

I've made this model to make the motor's wiring easier, increase cooling and most of all, to comply with looser tolerance parts. I bought my T motors of AliExpress and they didn't fit the original model, so i cut some holes and cleaned up the geometry, making the motor frames very tolerant
Changes:
-both files have gotten the improved cut-outs
-the AV one has gotten a track tensioner/raiser, while the AVNT variant does not (NT=non-tensioned)
Configurations:
-2 AVNT for a slick design, has low ground clearance
-1 AVNT, 1 AV (recommended) for a raised and practical design. The tensioner also works as a raiser, giving it more ground clearance, and a higher stance.
-2 AV gives the tank an interesting shape, similar to the British MK1. However, if you're using this for the tension, then you've got bigger problems
Mounting hardware:
-4x M3x30 screws. Longer screws work (I'm using M3x40 bolts in the photos)
-4x M3 nuts. The nut type is up to preference
-1x M4x30 or longer, depending on your