I was looking around the internet for you and found, on B4-U-Eat, this place in Hempstead named Junior's Smokehouse, where the sell homemade pickles. Never heard of this place, but once I went to the website I do believe we have stopped in there before. We brake for jerky and they have a large selection of it.
I'm sure there are other sources. I would check out the farmers markets and you might find them there. Most of the time you can find fresh pickles at things like school festivals or church bazaars, and such as that, but that ship has sailed I think. Good luck!
Oh, you might also check out some of the specialty meat markets. Long shot, but may be worth it.