Looking for cart extention adapter for SNES Game Doctor SF3 copier

Hello everyone. Long time lurker, first time poster. I just bought a loose Game Doctor SF3 copier (pictured here: http://www.robwebb.clara.co.uk/backup/bung/bungsf3.html). The problem is, it didn't come with any kind of cart extension adapter so I can't plug it into a SNES and test it out.

Anyone here have some kind of SNES extension adapter to sell me that I can use to plug this in? The first thing that came to mind was a Game Genie, but the slot on the bottom of the Game Doctor looks like the cartridge slot on a SNES , so that wouldn't work.

 

I just found something that works (sort of). I took the cartridge piece out of my busted Super Wild Card copier and plugged it into the SF3. The thing is though it's too long and I have to stand the Game Doctor and SNES awkwardly on their backs so the piece doesn't snap in half. Still would like an extension adapter though if anyone has one for sale.

I think the disk drive on the SFIII is busted though. Disk keeps trying to load and nothing happens. Gonna swap drives with the SWC tonight and see if that does anything.