Good list.

One option for the menus maybe is keyboard searching. Command-shift-/ aka Command-?then type the name and arrow navigate. (Key sequence might be wrong, it’s muscle memory at this point)

I wonder if Thaw could be modded to repeat the menu bar?

Dock can be hidden/revealed with a key sequence but I like the auto-hide with long delay to pop up idea, suggested elsewhere.

Another point, if you enable Settings > Desktop & Dock > Mission Control > Displays have separate Spaces, then you get a menu bar for each display, which helps with the menubar / window being far apart.

That doesn't work with a single monitor though.