"Recovery Box" Idea

I think the recovery compass is a good idea, but it's only almost enough for me to want to take on the warden to get. I think it would be a cool idea if you could craft the echo shards with a shulker box, and maybe Netherite to make it harder to do, to create a "Recovery Box". The way I imagine this is that if you have a recovery box in your inventory when you die, it will place itself down where you died, and put whatever was in your inventory in itself. The recovery box would need 41 slots in order to get your whole inventory and your armor, but you would not be able to put anything in it, only take things out, and I think it might be fair to require a silk touch pickaxe to pick it back up again if you don't want to craft a new one. I imagine the crafting recipe as being a shulker box in the middle, 6 echo shards on the top and bottom, and 2 netherite ingots on the sides to create it, but anything that's reasonably difficult to obtain would work.