I can't speak specifically to floating AND hunting, but there is a lot of float trip info in the caribou and moose sections. I have been a whitewater kayaker for a number of years, several of those as a seasonal raft guide and/or safety kayaker. If you're starting with zero river experience I'd say you'd get good safety info from a whitewater forum like mountainbuzz. Moving water is nothing to mess with. If you're serious about taking the family I'd suggest a swiftwater rescue class. You may not utilize everything you learn in the class, but I guarantee you won't regret it if you get in a bind. You'll also learn about issues/potential hazards you wouldn't have thought about otherwise. Larry Bartlett sells packrafts on his site, which has a forum attached, and may likely chime in here. I am not trying to steer you either way, but I'd make sure you look into a raft/frame setup over packrafts if you think you'd end up doing more family trips than solo float/hunt trips.