I have over 30 tats, with that said every ones pain tolerance is different. As for me my legs were the easiest now my neck and ribs were the worst... I suggest pinching yourself in the places you would like the tat ... Also don't forget the outline is easy , the shading is what you have to worry about... Good luck ;).
My lower back felt like I was getting stabbed at certain points, but i've heard from many people it doesn't hurt at all. I say just choose a spot and go for it' if it's truely meaningful to you it will be well worth the pain.
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.