That was me, I PM'd you again. I forgot to also mention that the engine is a much lower compression than a 2 stroke and easily hand propped. I guess I am somewhere inbetween a DIY and a custom install. I am fine with doing all the assembly work but not so sure about matching the gear to the crank and picking the right ratio.
everything sounds beautiful except why you put the batteries on board?. you just need to put a terminal like a banana connector terminal and just connect your batteries on the ground in a way like the GPU and when started then disconnect it.
Because you can wheel the plan out to the taxi area, hit a button and watch it start up, then taxi out, nice for a scale plane.