Refuse to adventure places where you'd risk losing your pack animals, hire an animal handler to manage such in combat, and maybe a guard for the handler. If your GM still refuses to let these things go, let HIM go. He's asking you to take it easy on him, but he's not being particularly easy on you if you're on ENWorld enlisting the legions of gamer l33t to manage your backpack. Personally though, I think I'd just stay closer to home or start taking levels in Ranger so I could 'rough it'. You know, just you and your bowie knife against the orcs eating worms without a fire at night. You could ask your GM what AC a Tarzan loincloth might be, and you'd still have room to carry back loot to pay for MAGIC bowie knives once you're high level.