I think most of the problems with the overweight BEEGEE would occur with takeoffs and landings, I would suggest , if you add the DA50 to it to take off like the Space Shuttle. You could build some kind of support to allow you to do that, a launching pad of sorts and landings could be replaced by having a parachute softly bring the plane back to earth, but come to think of it since it will fly like a rocket ship and you are taking off and landing like one you might want to ask this question over in the rocket forum