Hiya. I have a friend who is a MH nurse who worked on an inpatient unit just for people who were deaf and had MH difficulties. I'll see if I can find her and ask her. Is there nothing on the internet? There have to be some. Have you contacted MIND or RETHINK which are charities which might have listings to help you.
Oh and I forgot to the forum - sorry. May I suggest that I move this thread to the psychology section only because very few people come into the local areas part of the forum. Give me a PM and I'll moce it for you.