I am making custom sandrails and crawler tubes. PM me for details.
They can to be made to whatever you have laying around. elec is what i mostly do but would like to do a nitro one soon.
I have made only sandrails but looking to do some crawlers.
here are some pics from my first build and some drawings of the designs. I can make them anyway you want them.
My base price for labor is $100 then the cost of material (mostly around $40-$60) then the price of shipping (depending on the size you want).
PM me with your orders and we can work something out.
Would also consider trades for my labor cost but not the material cost.