no disrespect meant, but the last photo, and the sentance that goe's with it, your talking like they live in it!!!!!
I know some people are working on a budget, but surely you could construct a ferret box, rather that use some of them, one's a bird carrier by the look of it,
mine are carried in a normal bow back ferret box, if we go ferreting they are in there from 6am, till 7am then in and out while ferreting, then another couple hours on the homeward trip, ok, they may $hit in the corner(very rare) but I certainly aint gonna plumb a toilet in there