Electronic Ignition Conversion Kit from Jegs. Questions..

You can keep your 1-wire alternator and get an electronic Vreg for it for $11 on rockauto. Same connectors, just looks different (thin, chrome box).

I wouldn't fool with that old Mopar electronic ignition on a 1965. You can buy a $45 "ready-to-run" HEI distributor for your small block on ebay (skipwhiteperformance). Many posts here. Better spark and more reliable. Best to use an e-core coil. Another alternative is to get a later Mopar electronic distributor to trigger a GM 8-pin HEI module. They have a cable straight to their coil. Cost ~$25 in junkyard parts, any GM V-8 truck 85-95, or car to 93. Look for a "small cap" distributor and "external coil". TrailBeast here sells a kit with new parts for $99. That is currently the only HEI option for slant engines.