Man glock, I would totally hook you up cheap, but Iowa is quite the distance from my metal shop.
Here is what mine looks like currently. It isn't installed yet. Just need to get the bus back to the shop so we can weld that sucker on top. Basically it is 2 8' x 10' sections that will be bolted to legs that will be welded on the top window rail. Then I will skrew down wood planks and craft up some sort of hand rails.