Nikon SB-11: where to find a battery clip?

I just picked up a Nikon SB-11 flash for a song but once I got it home I realized there is no clip or magazine to insert the batteries into the grip.

Is there an online source who may stock this particular item? I haven't found many sources for parts around.

Thank you!

I guess I would try ebay first. They have a parts section for photo stuff. You might have to try a few days of searching.