This will be my first gun build. I am familiar with how the gearbox works and the parts inside of it. I am looking to do a high speed build, somewhere over 30 RPS and close to 350 FPS. I am looking for suggestions on parts as well as any tips on building the gun. I will probably be placing the order on Clandestine, so that is where the majority of these parts will be coming from. My parts list is as follows: Tokyo Mauri Thompson Deans connectors SHS High Speed Motor-Short SHS 13:1 Gears Shims 40D Sorbo M100 Spring Is a new piston, cylinder, and cylinder head necessary, or will the stock Tokyo Mauri parts be fine? And are there any parts missing? Thanks in advance.