Check out Eberle packs. They are bombproof internal frames made by hunters for hunters. Best pack I've ever owned. Not cheap, but affordable. The J "just one" series will go from a 2000ci day pack to a 7000 ci freight hauler and are made to carry elk quarters when full expanded. I would rate them right up there with the Kifarus and Barney packs....and cheaper.
Try to put your tree stand in a tree with plenty of background cover, keep the prevailing winds for that time of the year to your face, and take care of those pesky squeaks and creaks your stand may have developed while sitting in the shed. A good treestand lube can be made by heating petroleum jelly until it reaches a liquid form. Some hunters have reported success by including a cover scent in this mixture before applying it to their stands.