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If you want to see all major inaccuracies you might be interested in this....
http://www.ww2aircraft.net/forum/group-builds/fw190a6-sturmjager-sturmstaffel1-16915.html
Seatbelts out of tamiya masking tape and buckles out of fine copper wire. In the end I was about to lose my mind, so I didn't bother painting them.