The Alpacka 2-Person; boat looks great, but that name has to go. I like Duet cause it tells you about the boat and implies action.
“Have you seen the new Alpacka Water Moc?”
“No, which one is that?”
“It’s the 2-Person raft.”
I also like “Camel”, but I don’t think it’s right somehow. Too many mental associations before I “get it”. “Bactrian” sorta fits, with the 2 humps, but is an awkward word. I’m guessing you’ve considered keeping it in the family; Vicuna or Guanaco, “Guanaco Taco” springs to mind but surely that is taken and a little too cute. Guanaco shortens to "guano’’ and that’s not what we want here. Maybe “The Big Vicuna”. Check out the Wikipedia thing for “Camelids”. The Alpaca Tylopod? Camelops is kinda funny, “Epoch: Pliocene-Pleistocene, Remarks: Large, with true camel feet. Hump status uncertain.” Not unlike the Alpaca “2-Person”, hump status uncertain.