Full-autos are NFA items that require a $200 tax stamp and 6-9 month waiting period with no guarantee of approval. They also cost tens of thousands of dollars. A better option would be to buy a slide fire stock which you can get for $100-$300.
You can get mags off of Midwayusa.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.