This rig works really well and keeps your work at the height you feel comfortable. Hit reverse when you are done and the hide rolls right back off. The bottom attaches to the gambrel and goes up out of the way when you are done. Also works well on other critters like coons and yotes.
I will have some better pics soon. Yes there is a floor drain and a hot and cold water hose. The bottom puller is a modified hoist.
The wall covering is old style mossy oak 1000 denier nylon, we did all the walls in the house with it as well. I found a closeout deal on it, ended up being .53 cents per square foot. Rugged as all get out and cleans with a wet rag.