First of all, Welcome Back! I had begun to wonder if the earth had swallowed you. Almost called a time or two just to find out! Glad to hear you've been enjoying your Opel. The last I heard you had some bad luck from some used parts you had purchased. Sounds like Rodney got you fixed up.
Electronic ignition question: Here is a
link to a post from me with a You Tube video I came across and it also contains a link from Tekenaar with excellent instructions on a pertronix installation.
Geo Metro Master Cylinder replacement
HTH,
Harold