There's 6g running to my gfi box, then to my breaker box. These will be run in standard plastic conduit and the boxes will live under or beside the brew table. I'm planning a control panel on the right hand side of the 6 foot table, up on the wall and a separate protected box for my 120v and 240v plug ins and (shielded) temp probe plug ins to live, closer to the kettles on the left.
The pieces to be in ss conduit/pipe would only be from breaker box up to control panel and control panel to plug ins. It's simple enough to route it through the wall, but seems easier to relocate it if its in exterior conduit, should the need arise.