Looks like it's time to break out the Super Glue. If you are careful, and patient, you can sometimes glue these things back together. #1 make sure that the surfaces are CLEAN!! Let it cure for a couple of hrs, and mix up some good epoxy, build up around the joints with it, and let it cure. Be very slow and careful when installing the SIMM.
If you happen to have a scrap MB and a desoldering tool, you could swap out the banks. As for buying one, you probably can't.Good luck.

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