Get the one Tim mentions. Its the one I have and am very very happy with it. Some stands, the engine bobs around while rolling it. This one is rock stable. You get the idea.
Also, look carefully at this pic and notice how much wider I made the wings than the bellhousing. Its important to the design for it to be wider. (the line drawn with sharpie)
http://devestechnet.com/Images/Projects/Project1959235/Project59235333lg.jpg
