What you could do is fillet the breast,Your little fridge should have a small freezer at the top corner,Filleting the breast will allow it to fit in the small freezer.Place in a plastic freezer bag,the thighs can go in another freezer bag.
If anything you can pack it in ice in a big cooler but make sure you use as much ice as you can and make sure to replenish the ice and drain the water out every day.
Good luck on your hunt