The homecockpit kit allows you to use several modules from Simparts and, according to RotorSim.de, everything is set up to offer the most realistic environment possible. They actually mention that "The Pro version is specially designed for use in a "real" cockpit." so I would have high expectations if I was getting this kit.
The kit was built for X-Plane and it can use XPUIPC but at a higher price (an extra €100,00).
Where to get the EC-135 Pro cockpit
You can get the EC-135 Pro cockpit here for €500,00.