I'll give it a shot. Do you have any scans for Speak & Read?
Touch & Tell would be quite a challenge. I think there are multiple overlays/pages for each cartridge and the device knows which overlay is currently installed by optically reading a pattern of holes on the edge of it. Not sure how that would work, since there's no way for the artwork to tell MESS which page it's using. I'll have to think about that one a while. Fortunately Datamath.org has PDFs of all the manuals/overlays.