Jam-ehz-ahh-fianlly SOmething Tamiya related I can answer.
Try 60/40 oil with small hole pistons. Start with a 33 lb front and a 28 lb rear spring. 1.5 uptravel in front and 2.5 in back. NO sway bars at first. I wold start without the center one-way and put it in if you need it. TIres-try Parma Cyan fronts cut to 2.30" MAX (2.25" better) and Magenta rears. Set camber at 1 de front and 2 deg rear then set so tires wear flat. Ride height should be 4.5mm. Rear toe in shold be about 1.5 to 2 degrees. And try and run 28mm width tires front to back. Narrow fronts lead to rollovers in turns and edgy handling.
Rolll out the Monster at 1.02" inches for a 90+ straight. Dependigng how fast the infield is will tell you if you want to go up one tooth or down one tooth.