It is not worth a couple hundred. You can get it for 35 to 100.

Electronic ignition is the Best mod you can make to your engine. Without it you need to replace points & condensor ever 12 months. And can stll have trouble on rainy days

Buy an E15 dizzy and cut it with hacksaw to fit the A12.
Pertronix works but you'll still have the small dizzy with small cap more prone to crossfire.

See Electronic Ignition