This seems to be a popular subject, it keeps popping up every few weeks...
Anyway, my requirements haven't changed. I would not provide nor would I request, photo or other ID.
I would require a receipt, something along the lines of:
Brian Pfleuger purchased Ruger M77 MkII rifle serial # 123245 from John Smith on December 92, 1423 for the amount of $83.19
That way, I can show that I bought the gun, I thought it was a legitimate transaction, he represented it as legit and I had no reason to suspect otherwise.
There's no downside and plenty of up.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.