Sorry man, I've got a JP box and that's all :/
I'd gladly build one for ya using reference from the web (it's pretty simple layout), but I've got like a half dozen projects that I'm on for folks here right now. If you haven't found it in a week or two, then let me know and I'll try and get it knocked out for ya.
On a side note, you may want to just leave the cart in the system forever. The Saturn cartridge post is notoriously shitty (if you didn't know already), and the more you use it, the faster it'll wear out
