Innovion PC info needed? Converting simms to dipps or Where do I find 1mx4 dipps?

I have several old Innovion CASI Branded PCs computer photography PCs from the 80s (pictures here http://www.colortron.tk) I would like to expand the memory on several units to the full 4mb on the board, but I am finding it impossible to get 1mx4 20pin Dipp RAM chips. It would be nice if there were such a thing as a simm to dipp converter :) or sources of said chips. My other problem is with an old tektronix colorquick 4696 that works with my old photo systems. I need the dipp switch settings for it so I can get it to do a head clean (yes it has one) The printer is one of the old INK WELL type of printers and the heads clog easily, I ended up spraying the heads with distilled water and it worked for all of one copy. If you have a manual or dipp settings for this oldie it would be appreciated. Any ideas? Also on a side note I am looking for information, photos, really anything relating to the very old 1976 CASI / Innovion Apollo VPX Computer photo system. I have been trying to get one for years but everyone either tossed or sold their systems decades ago, the unit could take pictures and print them in B/W all with a whopping intel 8 bit processor. They were printed in 8pt text 14"x16". So your picture was ASCII ART!!!