If used as a display only, get rid of the M2 CPU subsystem, get rid of the external display, and maybe some of the cameras.
I don't think you can get rid of cameras without reducing the gesture tracking fidelity. That's the reason the Vision Pro has so many cameras.
> M2 CPU subsystem
Not clear on what this means without looking up the spec sheet. Do you mean "use a slower CPU" or something else? If the former - it won't help that much with size or weight.
Sounds like you're really looking for something like the Bigscreen Beyond?