Free: Contests & Raffles.
Get some web straps and lash it to your pack with those. You can get the pre-made ones at REI or by the material and clips and DIY your own. They work fine with my bow and pack.I think I remember seeing someone on here put themselves together a home-brewed bow bucket attached to their pack.
Good stuff Rum, thanks. Any tips on getting the harness from the pack frame a little quieter? I know it will loosen up a bit over time and not rub as much. I've put duct tape in a few places and put a bit of vaseline between were some of the straps rub on the metal frame to quiet it a bit.
After you've bivy hunted a few times, you might be surprised at what you are willing and able to do. Its a great way to see more of everything.