Ok, I've completed a system to get those leg transformed without "paperfatigue".
I also managed to get some room for the cockpit compartement to fit into the empty space in soldier mode.. precise fit, canopy following the contour. There is enough space underneath for the pilot's legs. I guess that's the room where Stick gets additional displays by looking through the canopy window. The nose is fitted close to the back (against the back of the canopy) unlike Toynami, it's sticking out like a backpack.