Eastern Montana and western Montana are like two different countries but both require to be in tip top shape. I'll be hunting the same unit as you in a couple of weeks during bow season and even then I haven't had a problem with squitos because the nights get down near freezing and I'm camping and fishin along the missiouri. Seeing bulls is no problem but getting within range during bow season can be a problem. The elk are the most educated elk anyone has hunted and even a good caller gets busted so it may be best to set up an ambush.
Cell phone are of no use there and a grocery store is not near and the road in is narrow with a couple hundred foot drop offs on each side which can make it kinda problematic if pulling a camper or boat.
Good Luck.

Bobby