After viewing your list I have a few more thoughts:
1) Try using some GPS / Digital Map Apps like GutHook or PCTHYOH and Halfmiles app , since you have a smart phone
2) SERIOUSLY RECONSIDER YOUR PACK. I love MLD gear, and I think the Prophet is a great pack, but I forsee a lot of swearing on your part using this set-up. EVEN with only a few days of food, NO bear can, and 2 Liters of water, my shoulders would be killing me. STRONGLY consider looking at something WITH a hipbelt and has decent weight transfer -- I liked my Zpacks Arc Blast, but would also have been fine with a ULA Circuit, a Gossamer Gear Gorilla, or maybe even a MLD Prophet with hipbelt (thought I tend to like structured bags these days). FYI: I had about 10 lbs base weight leaving the Kennedy Meadows for Kearsage Pass, and I had 34 lbs with only 2 liters of water....that is MAY to much weight for not having a hipbelt...YMMV
Had MANY TIMES that I needed to do 25 mile water carries, so just think about it.
Otherwise it looks pretty solid - any excellent decision on the Umbrella!