My son picked up some used guard shacks after delivering some bullet proof new ones to Fort Hood. I do not know if these would make a good storm shelter in a garage maybe for your guns as the top is very thick. May be too tall for most garages. Has 220v heat/air unit in it.
I was thinking camo paint job and put reflective Low E window film on the windows and it will reflect the tree/grass images back at the deer staring at it. Like those Ghost blinds.
I think that is his plan after the boss and him take one each. They have a roll off semi trailer they will transport them onto and set them on a persons property. After that I bet it is on you to move it to where you want it. I want one for the GE ac/heat window unit and to just shoot at the shack and see what happens then make a hunting blind.
Check this out Fort hood. https://www.guard-booth.net/guard-house/modern-guard-house/attachment/modern-guard-house-04-309/