nostr:npub13levfmuj9uu5gy4mhh0tg5nkujqujkyky8220rd0dkwpm4p950eqss6saf nostr:npub1jmg8nl2p25ex6juc9m60lce0hfstsh86wxz69yqqx2f6s33n2ursrr26zh 
I have an original working Sun board - I can take some measurements later.
You asked about what my PCB looks like? 
http://www.compu85.net/stuff/Lisa/PCB%20Photos/MEM_F.pdf 

I built that board out, but it didn't work. I never dug into why :S