I can finally show my sim pit now that is is more than just a HOTAS on a desk and some pedals below.
Version 1.0, major revisions expected.
In this one, the mount of the stick is still wrong, see this thread
I used some leftover aluminium profiles to create a frame that is clamped below the seat.
Stick: VPC T-50CM2 base + grip + 200mm curved extension
Throttle: Thrustmaster TWCS
Pedals: Saitek
Screen: Samsung Odyssey WMR headset