It wasn't my intention to start a debate on whether or not one should use a toboggan. To each his own. The reason why I stay away from any such form of transportation is that it is very limiting in where you can travel. In most mountains where I go, the toboggan will travel about 20 ft before becoming useless. A pack is the only option. Climbing mountains and bushwhacking with a toboggan is much more of a burden than help. I also find that using a sled or toboggan invites one to carry more gear than is needed. My 0C to -40C gear comes in at about 28lb (13kg) base weight and fits comfortably in a 80L pack along with up to 10 days of food and 2L of water (including crampons, ice axe and snowshoes). I've been forced into that position because in the forests and mountains where I usually go out, 95% of the places can not be reached with a sled or toboggan. I like to be able to go wherever I want, so the pack is the only option. If on the other hand I was on nice level ground, let's say somewhere in Greenland, or intended to stick to roads or river beds, then i would certainly bring some form of sled, pulk, or toboggan.
The reason why I mentioned the Weber/Malakhov expedition is that I thought they had an interesting option as a sled set up. The entire trip was over ice, not water. The sleds were not intended to float. The lid design was there so that over rough terrain if it flipped over, it could still be pulled. Similarly, the comment about the inefficiency of the toboggan as compared to the sleds was made by Weber and Malakhov, not me. In their words, the native people who used the toboggans had the good sense to leash them up to teams of dogs. They are certainly usable, it's just that when every meter and every hour counts, they found the sleds to be more efficient and easier to pull and manage. I think the OP asked for options, so I was giving one. Since I don't use any of the set ups, I was relating their experience which I thought might be of use.