Where have you asked already?
In my country I went to the electronic scrapeyards, public institutions that may got them in warehouses, schools, house of electronic enthusiasts, university, etc, and found a couple, but almost anywhere I went had tons of them a year ago, or tossed them away the past month week. I recommend you to go places, talk to people, and do it while you can, as they're rare, but they are becoming rarer.
