Looks to me like the tire deal would be the easiest and I can see those tires mounted on a rack with nice big wheels to roll it out of the way when not in use.
I'd cut a hole in the bottom of each tire and probably a hole in the side to insert a garden hose for the periodical wash down.
DF
Kind of what I'm thinking DF. I can build a rack that will hold the tires for a squeeze fit. The question is how long or how many tires does it take in a series to be most effective?
