Excellent news! Apart from the diffs- use the FLM alu cups and mod'd ring gear with 3mm screws, other wise you'll be looking at FLM hybrids & 1/8 HB diffs.
Well I got the UE 7.5 diff kit but for stock traxxas gears, metal cup, and will mod a traxxas gear my self. Hopefully that will hold up better. I also plan to turn up the punch control despite the stronger rear end, I just want this one to last as long as possible.