Possible Pack for an Un-supplied / Un-Supported Hike

Possible Pack for an AT Un-supplied / Un-Supported Hike:

First option for a pack. When the Mountain Hardwear Exodus series of Backpacks came out I thought the Harrier might make the basis of a good pack for a heavy load. The stock pack comes apart as a frame and a pack bag. It would be easy to make a Cuben Pack Bag and the Frame can be lightened a bit without to much trouble.

Last December I was able to buy a Harrier at a really big discount. I have several plans for the stock set-up. The first is a new and much lighter pack bag. I have a prototype made and will make the real thing out of some of my "stronger but still really light" Cuben Fiber.

Second option for a pack is a
McHale Pack. I don't have one and don't know what Pack in his lineup of Packs might work for me. He makes great packs and some of them are close to the weight range of what the stock Harrier pack is.

Third option is the
ULA Arctic Dry Pack that is being sold by backpackinglight.com and coming out in a few months.

I have been on a fitness program to help me hike 25 to 30 miles a day. Today I started carrying my Harrier pack at a weight of about 12 pounds. I will add 6 pounds a week till I get up to 60 pounds. I have a walking route that goes up and down some hills and is about 5 miles long. I walk this route twice a day and also workout at a Fitness Center about 1 hour four or five times a week.