This was a very easy build and even a first time jet builder should have no problems with it. If anyone is unsure feel free to contact me. This plane is fun for a first time jet pilot or the seasoned veteran that wants to cut loose and do precision aerobatics down on the deck. Coupled with the new K70 its an unbeatable deal with very good quality. The K70 had perfect power for verticals yet great fuel economy. Not sure what other engines will work in it.