well cut the chassis out of aluminum (glad I found a use for the jigsaw I bought a few years ago) and drilled the holes and mounted the parts that I have on hand. Was a royal pain in the rear getting the 2 rectangles cut out in the proper size that the diffs need. Also was wondering why my spur gear was binding thought I had the rear too close. Turned out the spur was hitting the bottom of the chassis so I had to grind some out

so far so good. Next I have to take it all apart and grind the edges down some to clean it up and cut some strips out to weld onto it to make a pan and brace that run down the center.
also got the RPM bumper looks like it will fit with some minor modding