on a more serious note, it's obvious that you're going under the bar. that's a low chassis, and unless you're going under the bar, no reason to cram everything into something that small
. as for other stuff, if you're going under the bar i would assume some sort of folding stacker or bin pusher, cause going under by itself isn't a huge feat.
that notch in the back, maybe for an arm or something to extend out the back while going under the bar?
i don't see any mount points for anything, but it's kind of obvious that something is going to wind up in there
. unless of course, it is a boat...