Retrieval?
>>I've done some checking into using a kyak for retrieval,<<
I have 2 kayaks at my disposal: A cheepo fibergalass one and an upscale polyethylene "sit-on" kayak.
We take the dawg out for a boat ride in the fiberglass one, so it would make an adequate airplane retriever. The "good" (sit-on)kayak is so organized you can't take anything that is not designed to fit into one of its molded pockets.
With the cheapie jon-boat, I could row out, start the airplane in the boat, fly around, load the plane back in the boat, and paddle home.
I tried using the airplane to tow me but who wants to eat all that glow-fuel residue?