Brushless Snow vehicle suspension question?

[schofield]

i have started my winter vehicle build and wondered if any one had comments on how im planning to do the rear suspension.
here are the pics:
The angles and shock set up are based off the way an arm is mounted.
parts cut, t-maxx lower arms and two rustler chassis:
it will have a hinge pin for the rear to the chassis:
parts are still rough as im still trying out things.

quick mock up of cut parts:

body off:

body on:

found a set of zero offset rims, i will have to move the paddles over to these rims. This cut off about one inch off the rear stance width:
blue box is how much on one side:

i have cut off about 3-4 inches on the rear stance compared to a stock rustler. and gone about 2 inches wider on the front.