I very common thing to do, A few years ago sort of on the recoed I was given a long wheel base (#( series truck, and built a super nice tool shed for the guard here, the front half had the storage tables with the lids that lift, and i put 2 bunks that fold up against the wall in front over each other, and under the second /lower bunk was a side by side bin for each soldier to have his/hers own storage, it was a 2 man set up for the parts guys here to go on a mission, a locking door in between also, in the back It was all open for a card table or such and high shelves all around, the back wall on each side of the door had specific tool rack for the pioneer set and a sledge and a few other items, easy to get and easy to put back, thats the key i think, and all outlets through out each room and had lights and switchs, and the power came out the front passenger side with a 100 ft of hard wired cable, and at the back boor a 50ft extension I call cables was hard wired into the last outlet so it had to be put back and could not grow legs. they loved it, I donated the time and material , worth every second...