The gear will essentially be the same as that used for the Cycle Utah tour except that the Soma Stanyan will have MTB gearing (about a 20″ low). The handle bar bag will be dropped.
The Stanyan worked out great and the gearing was more than adequate. I use 28 mm Gatorskin tires.
I carried tent, ground cloth, sleeping bag, air mattress, pillow-pump, mallet, and eating utensils in one rear pannier and clothes and toilet gear in the other rear pannier. This made hotel stays easy as well as being able to haul all of my luggage on the bike.
Instead of handle bar bag I used an Arkel Trail Rider rack pack which worked great.