[nickflood]

If you haven't already, look into spring-loaded or hydraulic articulating mounts for your monitors. MountIt makes cheap stuff that's pretty good for the money. Saves so much desk space and the monitor can be very easily moved out of the way for cleaning or desk work and then positioned back with minimal effort.

[ScottFree]

I'm not sure what that gets me. The bottom monitor sits on the desk and moving it would disturb the monitor above it.

Here are some pictures of my setup: https://imgur.com/a/A43irYb