As this aircraft is already in game, you will only need to install a "new" cockpit.
www.sas1946.com/main/i...l#msg67606
The improved version of the cockpit is here.
www.sas1946.com/main/i...948.0.html
If you have not modified your game yet, and do not want a monster download I would recommend this as a choice.
www.sas1946.com/main/i...832.0.html
Getting the mod for the FW.200C-3/ U-4 into the game: you may find this helpful...
www.sas1946.com/main/i...969.0.html
...which also has helpful links for putting planes in the air via the SAS method, and faultfinding if it doesn't work.
Happy hunting.