Wish I could help more. The obvious choices are always the internet. I used to find a ton of stuff at yard sales. It is always tough to find older versions of something. Not sure if FishUSA.com would have what you are looking for. You may also try to contact the company directly. I've done that in the past and had good luck with the company sending me a lead or two.
You may also try some off the wall, off the beaten path bait shops. They tend to have a lot of out of date equipment that is hard to find in other places.
I have OCD "Obsessive Crappie Disorder"