Once you have the PC6 install, go here and download using the green download button.
Milviz PC-6 GTN750 Integrated Navigation System » Microsoft Flight Simulator
Then go here and grab the free version of the GTN750
Everything gets put in the Community folder, go select the PC6 and you should have the MFD with GTN750 and and NXi is the PFD. You then don’t have to mess with removing the NXi folder and can fly the other aircraft that use it.
