I have no clue what you are saying in your first paragraph TBH. For my first Combat Robot, I am planning on purchasing a starter robot without the chassis, everything (Wheels, Transmitter & Receiver, ESC, Motor, Battery & Charger, Wheels, and Wiring for a low price.

My dad is a race car driver and a pinball expert, and he has many tools that I could use. I got the idea of using a spring loaded rubber band attacker that is on a pinball machine to cover my offensive Combat Robot and push all opponents away. (IE:potato.jpg)