At 08:34 PM 1/7/2012, you wrote: >I'm keeping the gokart/dunebuggy seats - there's only about 3" from the >seat-surface to the floor, +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Whatever seat arrangement you decide on they must be supported between the spars, not just setting on the fuselage bottom skin. A hard landing could have your A## dragging on the asphalt. :-( Larry Flesner