Some good points there Mickjoebill, in this "hypothetical" example, the door is removed and the egress is completely un obstructed. I have the opinion from two independent certified engineers that the (lash up) rig is safe.
Thanks to all for your opinions on this. This is all "hypothetical" at the moment and may or may not lead on to something else.
Lucky for me I had completed a risk assessment and double checked my weight and balance figures.
