I left my old Jansport packframe leaning on the tire of the Dodge last year, and it got bent. I've been using it, but thinking I need a new frame of some kind. I don't need a new pack.....I like my military Alice pack just fine. Any Backpack experts here that can point me in the right direction? I'm not looking to pack huge loads...maybe 50 LBs max, but occasionally more.