sorry for the really late update, I just didn't feel I'd made enough progress to actually make one before. anyway, I've got almost everything ironed out, aside from final ESC and RX placement. I'm going to be using s3m belts and pulleys for the drivetrain between the motor and the diff. speaking of which, I went with the stock diff from a 1/16 Traxxas slash, which has an aftermarket if it proves insufficient (i was toying with a full size slash 4x4 diff, but that thing is completely huge in comparison). the rear suspension did not require nearly as much work to fit in as the front did.