You would probably be happy converting to a 10SI or 12SI type alternator that is internally regulated. The wiring to convert is super easy, or you can get an adapter kit.
https://www.summitracing.com/parts/aww-27555
One plug goes on the harness that goes to the regulator and the other to convert the plug on the alternator.
Scroll down this page for some part numbers for the different versions...
http://www.madelectrical.com/electri...elcoremy.shtml
If you shop around you can usually find a new/reman 10SI for around $60