It's just a thought, but when I built a four engined bomber prototype last year, I ran four seperate esc's inside the nose, which took up a fair bit of space. My good mate Barry (bazex49) devised a system of putting the motor/battery/esc inside each seperate nacelle, with only the wires to the rx going into the fuse. Also, the quad copters advertised on HK use a 4 way esc set up which may be able to be adapted to your Lanc. I also ran two pusher and two tractor props to cancel out torque, and it flew rather well
It is a very unique sound in the sky, and well worth the effort. Best of luck with this one
