The VU-VF Ute to Panel Van conversion is done with the Ute rear window in place. They won't remove it. The owner can at their own risk but it is supposed to be a structural glass. We did an engineered flex test before and after and the nothing changed with the glass removed (which I did initially before further engineered modifications) it is much like a Falcon Van or a FJ Holden Van (lower load protector). So hardly convenient for passing a person front to rear. Still though better then closed up. Even the Mambo Sandman simply had the glass removed and some cleaver upholstery. One interesting things about the VU-VZ is that it has a Wagon floor pan. Rear seat frame is in place and you could easily install a rear wagon seat in much the same way you can on a FE-HG Panel Van. You would need to relocate the fuel tank and engineer the removal of the back Ute wall.