I'd be contacting FChat member alhbln (Adrian at Magneti Marelli Dinoplex Repair and Restoration Documents) -- see this thread: http://www.ferrarichat.com/forum/206-246/276251-rebuilding-dinoplex-aec103a-9.html Some excellent shots/info in that one rebuilding/updating the (slightly different from yours) Dino DinoPlex ECU.
Adrian does beautiful work! Looks like the perfect skill set to tackle these. Patience and intelligence goes a long way in meticulous restoration of these tricky electronic components.
No time to do rebuilds or conversions due to a very high workload, unfortunately. I decided to invest my bits of spare time in publishing documents about repairs and circuit diagrams instead (www.dinoplex.org), and to support workshops or individuals who want to do repairs and conversions on their own. Kind regards, Adrian
My Dinoplex was recently rebuilt by Classic Coach in Elizabeth, NJ. They sent it out. I believe the guts were replaced with MSD components. It works fine and looks original.