You know...when (IF, really...) we get our larger bus, i want to do something similar to my shortie 5-window: turn it into a monster pick-up truck!
Not chopping the whole rear, though. Think of the look of the Hummer H2s pick-up style/look. So, leave maybe 2 rows of windows, fill up the area with seats, add A/C, fix up the back bed with entry gates from rear and seating area.
It would be awesome.
Love the paint job on yours! Reminds me of "Optimus Prime".