Did find some photos, they are some more but they only need to find first. Here You go..:
Drilled hole big enough to allow trigger wheel through...
HALL-sensor what "read" is there metal at sensor gap. "Good Old USSR", inside parts made in USA...
Cut the trigger wheel so there is only two "windows" now. Drilled the center hole to fit original contact breaker cam, drilled and tapped holes wich mount trigger wheel to cam plate...
New made cover plate, 3mm anodised aluminium, red led indicating "when points are open", to adjust the static ignition...
Made that with only bench drill, no milling or lathe needed. Cost was a small fraction of 123-ignition, and quite fast to make...
The date at photos, took them when installed the ignition. Made it before summer 2004, if I recall correct, that was on winter 2003-2004. Installed just day or two after we went home from WM Sweden...