You have really engineered excellent answers to all of your objectives! I really like the way you have both an extra seat in the back, but then a flat surface for sleeping when you don't need the seat. It looks really nice and your construction shows real talent. It's going to be a completely different vehicle compared to what you bought and really easy to convert back to stock if need be. Thanks for posting all the details and the great photos. No doubt you're going to find a few others who would like you to re-work their vans!
Don