Indeed a rigid wing seems more appropriate as there is place enough for propellers and the control surfaces are on-board.
Soft wings would be more difficult to implement. It is not easy to have both a control with two winches, as for KiteGen KSU, and a rope-drive. FlygenKite has also two lines. Something with a single tether like @Kitepower or SkySails is perhaps more likely but the propeller would be settled on the pod, and there is little place, unless using a stick as for FlygenKite.
So back to our rigid wing, and with several propellers as for Makani’s wing, but if possible an odd number (3 or 5…) of propellers, the central propeller driving both the belt of all propellers and the main rope-drive via the return pulleys system for the right angle. But it’s only a possibility, or an impossibility.
How do you envisage take-off? By using the ground generator and the rope-drive to rotate the propeller(s) then the wing around the ground station, or by using E-VTOL like Makani does?