Building the Fuselage posed no great challenge. I mounted the rudder peddles a bit forward to accommodate my long legs. I added double the support called for in the seat mounting area and added angle aluminum as support under the seat. A frame was made under the control mixer and a 10 inch square lexan window installed so as to view from the bottom the control system. I think I would add more stringers and bump them out a bit on the sides to give a more rounded look if I had thought of it.