Another source of C&R guns can be made checking pawn shops while on vacation. I always carry a number of copies of my 03 license and when checking shops (gun and pawn) leave a signed copy for their files. I then call and check back from time to time to see what they have. Letting them know know what you want can result in a call from them when something comes in. This does work for me.
"It's Tommy this, and Tommy that, and 'chuck 'im out, the brute,' But it's 'Savior of his Country,' When the guns begin to shoot." Rudyard Kipling