The garmin rino is probably the best for sledding they have 2 way radios and if your buddy has one you can program them in and you can see exactly where they are on your gps.
I will be riding the valemount area 18-20 looking for a group to tag along with I know the area fairly good.I have all the safety gear and don,t drink on the hill.
I heard snow is good to far away to predict avy.Check in the valemount conditions section for pics. I might be in the area the same time as you guys depending on fresh snow!