FYI, I have now listed my one available Mark 8 board
set on eBay, at:
http://www.ebay.com/itm/181232701085
Photos of the "twin" of these boards and the computer constructed with
them (including GAL-based replacements for the harder to find Signetics
multiplexers - though I also have the "real thing"), can be found on
Flickr at
http://www.flickr.com/photos/100660569 at N02/sets/72157635953237715/
Although one can never tell about the future, I do not plan to run off
more sets of these, for several different reasons.
However, if individuals have Mark 8's that are missing a board, or have
a damaged board, feel free to contact me off list.
(I also noted one of the kits of parts for the Mark 8 for sale, as well
- for what it is or is not worth, those are not my boards, they were
done previously).
JRJ