This just in . . .
Alpacka has a new raft out called the Scout. https://www.alpackaraft.com/store/index.cfm?CFID=4015961&CFTOKEN=76664291&ProductID=126&do=detail
The description says it's just over 3 lbs so maybe this will be a good boat for the Classic. This cuts more than a pound off previous boats. The only caveat is that the description says it's made for flat water. That's probably code for "you better know what you're doing if you float whitewater".