I am thinking about buying a used Langford Nahanni. It is 16'5" and kevlar, weighing in around 49 pounds, likely a little more than advertised weight due to added skid plates, etc. The longest trip we take each year is 5 nights and mostly flat water. Occasionally, if we are in a bind, we will duff the odd numbered person in the middle for a trip, plus our gear. We've added a third in 16' boats several times before (Old Town Discovery). Seeing I'm from Vermont, I'm not as familiar with this Canadian brand. We also portage a fair amount. Basically, I'm looking for a good work horse, that I don't need to treat like a china doll, that can handle a third or large load, and doesn't kill my names on the long hikes. Thoughts?