Alternative option: If you're not worried about restoring to original condition, consider switching it to a 3.5mm audio jack connector.
Set it so it tucks vertically up against the side of the shutter body, and wires back through the old Bi-Post connection hole. Just design your mount such that the mount should break if the camera is dropped, rather than the mount breaking the shutter body?
[I have the parts in a drawer to do this to a Supermatic I own. Worked easily enough on my test setup, but I keep forgetting about getting paint to make a more finished look and permanently mount it. I made the mounting bracket out of aluminum so that it reuses the original screws.]