well......im building, and beta testing errols flat flip 3D. after tat i will be building the foamy factory Yak. Lipos..........................well, i think [link=http://www.falcon.uk.com]falcon[/link] do it and so does www.e-flight.co.uk outer wise youll have to go to america to find them. However, the GWS motor will burn out very quick on a 3s1p lipo. look at the range of AXI motors from Puffin and this mount so you can mount it to the standard GWS sick thingy http://www.parkflyermotors.com/secur...asp?itemid=465