I just found another cart advertised in my new issue of Canoe and Kayak.

I've seen the "Kayak cart" and "Canoe cart" before, but I haven't seen the "Pop/cart" or "Heavy lifter". The "Pop/Cart" looks like a pretty good cart for a single, except the wheels look a little weak. Maybe an upgrade is needed.

As far as the "Heavy Lifter goes, I wish I had seen it before I bought mine. Not that I don't like mine, but it looks almost the same except that it would probably fold up/come apart into a smaller package.

http://www.paddleboy.com/products.html