Archectual Concept Illustration of Campervan

I require a series of concept drawings of a campervan design, similar in style to the attached pictures. The campervan will be a custom conversion of a very small van. The interior will consist of two standard seats at the front(driver and passenger seats). In the rear, a single bench seat(converts into bed), a single workbench, with a two gas hob and small sink and a pop top roof. Drawing will be used for promotional purposes only and need not be accurate. Required minimum drawings: 1. Two exterior drawings, one with pop-top down, the other with pop-top up. 2. Two interior drawing, one from the rear doors, the other from the looking in from the rear side door. 3. Two plan layout of the campervan, one with the bench seat in normal positon, second with the seat converted into bed. I don't have any technical drawings available, however, I have a video of a completed van and photos of similar conversions.