It's a neat engine, and quite powerful, but.............what are you going to do for parts? I know for a fact that Hobby Services has NO parts for this motor, except for those it MIGHT share with current production OS 120, you'd need to ask Bax about it on the OS forum. At best, you might be able to get it serviced in Japan. While I think you could find bearings, anything else is a big question mark.