Here’s what I ended up doing for my OF Woodworker.
Designed this in SketchUp and hired a student to weld it up for me; he did a great job, much better than I could do!
Top is doubled up 3/4" MDF, 48"x48". Finish is silver powder coating by Jack Rabbit Mfg. in Bryan, TX. There will be some kind of shelf and/or storage below, but I haven’t figured that out yet. 4" double locking casters; I haven’t noticed any problems due to movement or shaking yet.
The OF is set off slightly to the table right so I’ll have a bit of extra room for a drag chain on the table left.
Decided to go with T Track at full 48" length.