Last weekend main rivers were frozen, some smaller creeks had open water still but accessible. not much snow and trail was real rough. off trail had very limited snow...lots of hunters, not many moose
You may need both, depending on the weather and more so the conditions of the two rivers you will have to cross.
If you go in early and rivers are open and no snow you will want the Argo. It can take a week or two of below zero before the rivers freeze and have enough snow to use a snowgo.
I always think the earlier the better, less cold and more daylight.
Looks like your new here, start a new thread this one is old