Hi David,
You are abosolutely right about any gun purchase from outside the USA for American buyers. I only buy from sellers I know and trust outside of the USA.
I took the time to post the Luger photos on Jan's Gun Boards as many of the guns seem to be honest, old authentic guns with wear, rust, patina, etc. you would expect to see more often here in the USA.
Just too many minty and "sock drawer" or "attic" Lugers for sale in the USA...but that is only my opinion.