Hi Doug, I changed a little the title of the topic.
The old Zeppelin could be over 200 m long, and the recent Airlander is 92 m long, so far beyond the dimensions of any plane.
The kite-blimp or kite-airship would be a giant lifter kite, not a travelling blimp. I also described a crosswind use but as an accessory use, as it is not adapted. As I mentioned in the initial comment Voliris claims a lift to drag ratio of 5.5, so more than almost all flexible kites. This would lead to a good buoyant lifter kite supporting the turbines with suspension lines. In my opinion, high speed winds would be no more of a problem than for any stationary lifter kite, but experiments would be useful. Perhaps aerostatic lift would add some stability: I remember that Peter Sharp claimed that the Sharp rotor was more stable as a kite when inflated with helium.
Yes, but as a kite, things can be different, better or worse. The control should be made by several tethers and their respective anchors. If the airship is shaped like an Isotropic kite, for example a lenticular airship, things would be easier concerning both landings and takeoffs.