For those of you who wanted the Qbus backplanes here is the list. I've been moving things around and found them while looking for something else.
Please contact me off list with any questions. H9270 4 x 4 used in the BA11-M for the original PDP11/03 H9270 with card cage complete 11/03 box, boards available H9276-B H9276-B with card cage H9278-A 2x12 micro backplane with card cage BA123-A Sygma 4x8 with card cage Heath