I modeled this bench to do a study of it, using Sketchup. Posted my model on the 3D Warehouse.
It is a nice arrangement, and well-suited for jobsite setup and use. Ron Paulk shows it in his videos. His box van is a marvel of tool storage.
Did you do it because of the need to do jobsite work? Or maybe to have in a garage, stored, for setup inside the space when the vehicles get pulled?
In a nice Mediterranean climate such as along the central coast of CA, this would be a nice setup for doing work under a tent outside.
Pics attached of my model, and of the 3D Warehouse links that go to it, plus the link to Ron Paulk's jig for boring all the holes to the 96mm square pattern.