I think there are a few important questions. What wheel and pedals are you primarily using? What are you looking to achieve as this is a potentially huge rabbit hole? you looking to setup a dedicated simrig or just something to mount your setup on that will come out occasionally? Does it have to be just a wheel/pedal stand or are you interested in a proper rig? Whats your budget? whats your space constraints?
Looking at that "Diwangus" setup personally I wouldnt even entertain it. Its going to be a wobbly mess. If you are confined when it comes to space restraints. Going by your limited info given I'd probably look at the GT Omega Apex as a bare minimum. My mate runs one and I've spent put a fair few laps on that setup, and its surprisingly rigid and functional. He runs a Thrustmaster TS-XW/T-LCM on it and its actually decent, wouldnt want to put a stronger wheel/DD wheel on it but for that setup its absolutely functional.
As I say though, give us a bit more information and we'll be able to advise you better.