Gents,
Discussions like this, especially those that call out "political correctness" are bound to end in an argument. This issue has been discussed endlessly here and elsewhere. Please keep the conversation civil and non-political. As far as the OP, there is nothing stopping you from building your model as you wish, just as anyone who builds Luftwaffe aircraft or World War II armor applies swastikas, so can you. The only time it will likely be an issue is if you decide to display the model in one of the countries where Nazi symbols are banned by law.
Regards, Aaron