Any opinions about the Baja Motorsports Doodlebug minibike? Has anyone installed a larger engine on one, such as an HS40 or HS50 Tecumseh? Or better yet, I have some Intek 206's and a GX200 clone taking up shelf space that'd love to propel some kind of fun machine and I could use a Comet torque converter too if there's room. Seems to be a pretty good deal for what you get. I just might have to get one for kicks.