I think around $2 isn't a bad deal for it - especially since it's not just a bus hulk, it looks like a decent little conversion inside. Someone cared for it once.
That's not 10 years worth of sinking in to the mud. A few months, maybe a year. (With all the rain and warm weather, if I parked that on my front lawn, it would sink more then that in a week.)
It's a lot more "together" then some of the other things I've seen popping up for sale lately. The real question is does it run and drive...Sometimes its better to let the tire kickers assume it doesn't, even if it could be coaxed to a rough idle.