A little progress today. Hopefully I can get this thing going.

I cut out clearance for the rear axle to fit. It took a decent amount. I got her bolted up though. I used aluminum angle to mount it up.

I plan to mount the motor and gearbox to the aluminum pieces you see here.

Hopefully like this.

And this

I then moved to the steering servo mounting. This took a bit of thinking for me to figure out. I notched out an area so the servo fits slightly down in snugly. I trimmed the servo to fit up to the chassis.
I hope to use this servo wheel that I mounted some ball joints onto and rods from an old duratrax evader chassis I had.

I used this to secure the servo into place. I used it liberally. The package said it will withstand 4400 psi so we shall see how it works.