Metal frame backpack (Brooklyn ny)

I know I put my head out here months months ago I'm just looking for the metal frame of a hiker's backpack I'm trying to do a Halloween costume but it was going to worse I'll have to buy PC tubing but I was wondering if anybody out there had a metal frame hikers backpack it could be used scratched up and it could have stickers it doesn't matter I would appreciate it so I want to go to the Halloween parade so I can show my mom that I'm at the parade she had a heart attack a while back so if she wants me to enjoy myself the Halloween so if anybody has one I would appreciate it a lot