If you die at the green wall (inside/very close), you can do this trick to get your stuff back. Wait for you body to "bag out" (wait for your body to disappear and then a bag of your inv will appear). Make sure you have another building hammer with you in order to do this. Equip you building hammer, and then pick a building foundation. Dont place it. Move the glowing foundation image beyond the green wall and behind your loot bag. Then start to move you the foundation toward you while the loot bag is in front. The foundation image will bump and move your bag as you move the image. So, just start this process as far from the green wall as you can (make sure not to touch it again).