I ordered all my cage traps years ago from a guy called, Trapper Art's. But I think someone else has bought out his business...shame, Art was a great guy to do business with. I wanted a couple cage traps. He sent me two different models. After trying both for a season, I sent one back and bought all he had of the other...it's the one that I still use to this day. It realy is a great trap.
The closest thing I could find are these:
http://www.duketraps.com/cage/cage.html
Get the heavy duty ones at the bottom of the page.
30" x 12" x 12" is the size I use. I think I have 15 of them now. I have a couple 36" x 13" x 13", those are hard to find anymore, those are the ones I started out with, I have 10 or so of them. Again a great trap.
Duke makes a good product. Bridger is another good brand, but I don't know if they still make cage traps.
If you are good at welding and fabrication, order one in and copy copy copy....
When I get into a lot of raccoon, they seem to be family units, all traveling together. They are creatures of habit, and they actually make roads as they go about their nightly routines.
When I find that I'm dealing with a lot of raccoons...just gang set. Setup four or five locations along their travel routes. If you are using cage traps, wire them open and bait them for a couple nights....once they are hitting every night you know that they are racing each other to get to the free food. Then unwire and set the traps, and they should all be full for the next couple nights. I had one place where all the sets were within a 20 ft line right along their trail...by the end of a week, I had 15 raccoons, then nothing. A month later, I got another call, and pulled out 5 more.
Once there are no more catches for a few nights, check very carefully for sign. If there is no fresh sign..then your job is done.