Kayak cart for an old Revolution

For years I used a paddleboy stern cart with big wheels that eventually wore out. I load to the rear of my car, solo, and it has worked just fine with this cart. Thru hull would definitely NOT work for the way I load. I'm trying to find a 10" somewhat light wheel with a 1/2" opening for the axle of my spare cart. OR, a cart like I had. Suspenz's cart was too big, some wheels are insanely heavy, etc. I take my wheels with me so the folding aspect of the old paddleboy has been great. Thoughts? Ideas? Thanks in advance

I have the RAILBLAZA C-Tug R with SandTrakz Wheels for my heavily loaded tandem Oasis. Works well over almost any terrain. I disassemble and store it in the front hatch.

Peter