At the moment it's only the video ram replacement side of the equation. The flying lead takes A10,11,12 from the main board. The rest of the signals are picked up from the vacated 2114 sockets. The empty socket is going to take the FRAM and some decoding logic will live adjacent, unless I can find suitable signals to pick up from the motherboard.
I shall return with news of FRAM. Dear, dear FRAM.