My canoe is pretty light weight so I can portage it a fair distance, but for the Terribly long hikes I'm gonna pick up this bad boy
http://www.mec.ca/AST/ShopMEC/Paddli...canoe-cart.jsp
And nice set-up! I have pretty much the same trolling motor mount and run a 55lb Minn Kota...I have a sonar unit too, running a humminbird 345c that has a suction cup transducer that just attaches to the bottom of the canoe...I really like it....one thing I've always meant to get is a rod holder and I really like what you've done there..great idea