How do you plan to control the motors? R/C or with a micro? what size battery will you be using?
I am currently using the Sabertooth 2x5 and it is great. There are lots of control options but you may need to consider the 10a version.
Are you going to use three motors per tread? I think that could be tricky since the motors will likely spin and different speeds…
Im planning on using both R/C and micro ill have a switch to swap between them. Im unsure what ill be using to power it but im thinking of having acouple of 12v batteries in parallel.
And for the motor setup im planning on having either 2 motors on each side or 1 on each side.