I think for modifications like this you will be lucky to find a shop that does it. Its more something that a racer would stuff around with himself.
If you can get push/pull actuators I am sure you could make it fit. But I can picture the actuators arm interfering with the pickup when it pushes to retard. This could be overcome by shaping the arm to go around it, but it would probly require milling out of the dissy housing to stop it hitting there.
I think the cost would come close to that of having another dissy machined to fit the desired engine.

Below is a pic of my centrifugal advance after being locked. On the left the hole is brazed up completely to prevent movement. ( My ignition is computer controled.)
This distributor was used in another car and the hole on the right was previously filled a little to limit advance.