The 7110A 1Mbit bubble board is on Tindie for purchase. This board will also work with the 7110AZ but you must lift pin 13 up from the socket since the pinout is different for the ‘Z’ version of the chip. The next version of this board will have a solder bridge for that pin.
As a matter of interest, here are a few outside links to bubble information that I have come across recently:
F.J. Kraan Includes background and some nice links to additional information