To spend more time with the wife and dogs, while still maintaining a large monitor and comfortable seating, I decided to modify a sit/stand swing arm monitor mount I found on amazon to fit beside the recliner couch. Most important was being able to make it without damaging or modifying the couch to keep the wife happy.
I even went so far as to model the whole arm, with proper articulation, to better understand just how it would fit on the sofa. I modeled the sub frame from the sofa and took measurements to understand just how far the new arm mount would need to be.
Further refining the design by designing a new storage compartment which holds my speakers.
Some additional pictures from the build
Design and fitment of the speaker and phone charging dock
Fabrication of the keyboard tray
Assembly of the frame