So I rebuilt the rock wall on the lower side (a LOT of work), so am ready to go. I didn't take a new photo (I was pooped), so here's the view.
This image doesn't show how it was collapsing on the far side, but demonstrates how fertile it was last summer! This was a tromboncino squash vine on steroids (AKA nitrogen). It never produced any fruits, but its foliage was amazing....
I also refreshed and amended the beds on the side of the house (between the house and the apartment next door). They're good as summer beds since they get full sun then; they're no shows as winter growing areas as they're shaded by the house.