System 80 X-4020 Expander KiCAD woes

[ChickenMan]

The pics I took of top and bottom of my X-4020 expansion unit are way too big to post here, and to reduce them in size means a reduction in quality. So have put them in the Repository in the Vintage/System-80/Documentation/Pictures folder.

EDIT: Also added CheshireNoir's chip annotated version.