I'm interested in the shifter setup, where do you find a shifter handle like that?
There are some people in both Europe and US who adapt handles to the PC and sell them for 100-150 dollars (google Almar SKRS for example).
Mine is made by myself (true geeky approach

) — back in 2017 I bought an Arduino board (it’s in the white box under the monitor, the USB cable connects it to the computer, and the white thick cable goes to the handle), a Scania handle from truck parts shop

, then made some rewiring and programming. The handles sold by Almar and others have the built-in board and the USB cable comes right from the handle, so they look like normal PC accessory, so it’s a better choice for not a geek. My geeky handle is more than two times cheaper, have a minimum height (long handles are harmful for weak Logitech shifter) and I know how to repair it by myself (the switches were replaced after a year of usage, other parts work perfectly).
If you have some skills in soldering and work with Arduino, the making of not-for-sell handle is pretty easy, I just needed some study on Youtube and GitHub. The Scania (or other brands with electrical switches) handle is easy to adapt, but if you choose some Eaton handle, you will need also make your own switches — usually from a magnet and Hall sensor, which can outlive any PC accessory

— and that part of the work is much harder.