honestly it will change by next year. i know you mean the two most-middle seats on the 747/777 that both face backwards and you only have the arm rest and small divider if you want.

nothing will really re-create that other than the window/aisle combo mentioned above so you share the divider and face one another. but with frequent changes and the possibility of the A380 resuming SFO in 2022 (we can hope right?) then you wont really find anything that recreates the original unfortunately. but the aerolopa site does have really great and detailed plans for you to peruse.