Well folks, here I go again. You may remember the Sport Boat thread where we developed Turtler? Everything worked out very well for a trailerable, but light weight boat to cruise around the small and not-so-small mountain lakes, but Turtler is too heavy to car-top. I'll refer you to that discussion and build: http://messing-about.com/forums/topic/8952-sport-boat/    Miss Debbie and I need something lighter to carry on top of our Ford Explorer while pulling our camper. Something us old folks ca