The Double-X wing... I thought of doing almost the excact thing your doing years ago but ran out of room, patience, time, etc... IOWs ...burned out...not long after that idea !.
I always thought this would be an excellent project, your doing a great job proving it was a good idea afterall ! Mine kept both cockpits one for pilot, one for bombedier.
Keep it going, I'm building it along side you, if only in spirit!
I'm really looking forward to seeing the finish product.