How to install the shifters on any cockpit
There is a great mod made by ron7 about how to attach the Porsche wheel shifters to cockpits like the Playseat etc.
It looks solid and made with standard components and without the need of special DIY skills.
Check it out!
Edit: If you like to have it more simple you can buy the RennSport Wheel Stand Shifter adapter and just bolt it to anything.