Just checked - I've got one that I bought a while back. It's not new (was pulled from a working board) and I have the YM3012 that often goes with it. I've got no way to test it, but I assume it still works. How about £8 for both chips including postage? If you find they don't work, I'll refund you. PM me if interested and I'll give you a paypal address.
Mark