I would seriously consider making some sort of open frame unit. This Trestle table I am working is great for holding all sorts of pieces. Holes could be drilled for bench dogs.
The various horizontal beams are helful for holding clamps and a tool box could be mounted for chisels, planes and other hand tools that you wouldn't want falling on the floor....
Or at least that is what mine looks like most of the time. We get many pictures taken "in the shop". I like to study what is in the background for shop ideas. Most pictures look as though the cleaning lady(or guy) had just left-counters dusted, carpet vacuumed, windows cleaned, tools and accessories all in their place. Alan's shop looks like the shops of the customers we used to deliver to. Is that a table saw back there? Usually it is easier to spot a table saw in a shop.
I have one stall of a three stall garage, and right now that space has to be shared with a Honda goldwing and a snowblower.all my stuff is stacked next to each other and I have a walking space of about two feet by eight feet, between benches. If I want do something, something else has to move.
I've poked fun at Alan privately about his work space before. However, I think it's a testament to his love of working wood given the space he has and probably most would agree the finished work he produces is top notch.
I'll go a step farther and say if you put him in a large open space with a 10-foot ceiling, all the best lighting, mobile clamp racks, central dust collection, and assembly benches all around the poor boy wouldn't get anything done. No sir, he would be lost.
One of the more popular articles, from what I could gather, that appeared in FWW some time ago was for a New Fangled Workbench sorta built along those lines.
And to an extent most benches are no more than a set of saw horses with a beam on them. How closed or open varies with the design. Of my two fancy benches, the one had a tool tray I didn't put a bottom in for years, and the other has a two piece top with a 1" slot running between them.