Thanks for the reply. I just begin sanding the the plastic parts this week. I would like to do something a little different with the scheme of the plane. I will be fitting the plane with a .75 engine. Did you have to modify the engine compartment to your .91 engine? I will break in the plane in the altitude of Colorado before flying off the lake in Idaho. I wanted enough power for Colorado and you can always reduce power. Thanks for the information.