Something to consider is the ability on a route to do two things: fish, which for a trip of this length, may be very helpful with nutrition.
Campfire, which may be very helpful with mental fitness, warmth, drying clothing out from the inevitable showers. Higher routes may be in fire restricted zones.
Also to consider, High Sierra Volunteer Trail Crew will have 5 week-long pack supported deep sierra trips, free, all food included. Not yet up on their website, but should be good stuff.
