concerning the yukon raft ... the correct, best made, and absolute safest brand of lightweight raft without a doubt .. however, the alpacka scout will support nearly any amount of weight, including two people with a sense of humor, on flat water. it costs less than a yukon, has faster resale after the trip, and is smaller to pack, and weighs somewhat less.
i know for a fact the scout will bounce off reasonable quantities of floating ice slabs. northern water can get nippy.
i would question the wisdom of compromising the integrity of such a trip for the sake of temporary savings of a few bucks on an inferior raft.
just my op (as a scout owner)