I use this shell:
Reinforced with amazing goop and drywall tape, allthough it has still cracked on a few places but I have fixed it. It is an old picture, I use RPM arms now days, I have two set, blue and black just in case I break something.
Truck it dope, some few things I don't like are the lower a-arm screws, they are all bent a bit due to the 6mm spacer you have to use when mounting IRC shocks on rpm arms. What else, the servo saver suck despite HD spring, I tighten it a bit more today because the servo saver engaged all time when turning. The tp 4070 107mm motor has alot of torque and is 8s rated but I still have to run heatsink and fans to keep it cool which was a surprise, I thought it would run cooler than my 4092 1730kv motor but apparently not. I jump alot so it puts alot of stress on all components so breakage is not uncommon and I make tweaks and fixes all time, but that is the price you have to pay running custom trucks on 6s with big moters .