I just now saw this post - here is my plan for a table I’m currently building. I’m expanding it to accomodate six guys. After some study, I realized that six guys cannot sit at a table three to a side. Only the guy in the middle can access the full map in that arrangement. The only way to do it is to put two guys to a side and one guy on each end, like this:

The blue represents an enlarged custom map (for Ann. Edition type play). The green rectangles are custom dice rolling trays. The purple rectangles are custom sized battleboards. The grey rectangles are player reference cards. The brown rectangles are piece trays sitting on card tables. The card tables can hold extra chips, cash, snacks, etc. Cup holders will be fastened to the table legs to prevent liquid spills.
As you can see with this arrangement, almost every player will have access to everything he needs. Italy will sit on the left side, USA on the right side, Britain on the top right, Russia the top left, Germany the bottom right and Japan the bottom left. The only player that will have trouble is the USA, who can’t reach his eastern seaboard easily, but other than that I don’t think there will be a bad seat in the room.The black line to the right represents a free standing production chart that will be custom made from a restaurant menu.
This table is 4 X 6 ft, which is pushed to what I think is the limit of a sit-down game and would not work for the global games.