Bruh, the one in the middle is the samsung CRG9. As for the mount, i bought it years ago so i forgot. Sorry.
The vertical one, i used this one and it is very sturdy
shit man, now that you said you're from aus, your build is now twice as expensive as I had thought. I own an X34 as well and almost went with the S340 Elite, but went with the Phanteks P400S w/ tempered glass. I've got two 1080s instead but I'm honestly considering selling them for a single 1080ti as the game I mostly play, Rainbow 6 Siege, has crashing issues with SLI :/
The next thing I did was buy myself an articulating monitor mount since the legs make the monitor too close to me and my desk is pretty shallow at around 70cm. I bought this one here as I learned that anything cheaper wasn't a solid mount. Plus, I needed to make sure I got a reliable mount for my thousand dollar monitor haha.
Enjoy the Witcher 3 on ultrawide mate! I love the game so much I got a custom straight razor designed after it.
I just use the low-profile generic one from amazon to hang the LG TV and the CRG9. The vertical one i use one of these from amazon.
I use two of these for my monitors.
https://www.amazon.com/dp/B01MXEIA00/
There is also a dual version, but it's only available in silver at the moment.
https://www.amazon.com/dp/B01F2SIY02/
As for clearance, I have my desk about 4" away from the wall currently, however If I moved the monitor arms forward more, I would be able to push the desk all the way against the wall.
I use two of these for my 34" Ultrawide and 27" in Portrait.
https://www.amazon.com/dp/B01MXEIA00/
Here is what my setup looks like with those two arms and monitors
They also have a dual monitor version.
https://www.amazon.com/dp/B01F2SIY02/
Friend of mine uses the dual version with a 32" and a 27 in portrait.
This is the one I currently use for my 27" Viewsonic Elite had it since April with no sag issues.
https://www.amazon.com/gp/product/B01MXEIA00/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
Mount-It Monitor Mount. I bought this after JayzTwoCents highly recommended it. It really is awesome.
https://www.amazon.com/gp/product/B01MXEIA00/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1