I'd personally ditch the monitors and go with (however many) "pocket projectors" then just project them onto a wall or something. Some of these projectors screw

I'd personally ditch the monitors and go with (however many) "pocket projectors" then just project them onto a wall or something. Some of these projectors screw into light bulb sockets so you don't even need to worry about a mounting system. There's also a company that was trying to make monitors that could be folded and that was all just based on fabric that expanded as a projection surface. If they ever shipped - that may be a more ergonomic option since you can line that up easier with your eye level in the same way as a regular monitor.