Yup! I'm building the 450 with KK2, Sunnysky X2212 1250 kv motors (8" or 9" props). I already received my Turnigy XRs (2 of them, one with Orange module and the other with FRSky module) and one Orange and one Frsky rxs. Only have to buy a laptop (as my computers are all Macs and am not...