Info on a northern river hunt

[spellswrong]

Hey guys Im looking for a river to float this coming season while hunting for elk and moose mainly. Ive been looking at the peace river but I've herd it gets crazy during hunting season. Ive also been looking at the Notikewin river west of Manning. I am not sure what game numbers are like west of manning for elk I know the moose success rate is low but the trip is more important than the outcome for me. Can anyone let me know what its like on either of those rivers or point out some resources I could use for researching a hunt like this? thanks