Thanks guys shopping all done: RC monster conversion kit, 780kv 2028 with XL2, castle BEC PRO, castle twin blower fans, 2 x zippy 4S 8000mah 30C batteries. I also went into RC prawn bought FLM front and rear braces and skid plates. Two things bother me; firstly would it be better lowering 16T to 14T to help start up and reduce strain on esc the other is batteries I usually always go for as high a discharge as possible (70-120) these are 30-40C..... I've ordered it all so let's see...