Yes, it works very well. The mounting plate of the Odyssey must be attached to the two cross struts of the RIG (PS Sen. pro). I have exactly this configuration and can send you detailed photos if you tell me where!

If it has the kvm switch it's gen 2. I got it a couple of months ago, great! But you have to keep a certain distance if you don't want to hurt your neck. Cockpit mode is nice to show people, but you'll never use it.

Quiet and, in my opinion, no heat.

In this case, the specs are more likely to determine the price than the size.

I don't know.

the 2nd has newer connections and is therefore suitable for the future.

Unfortunately, the Odyssey Ark is only available in this version, but you can find other monitors in the 42-48 inch range here: https://www.digitec.ch/de/s1/producttype/monitor-31?filter=nr_1%3D1.0668%3A1.2192000000000003