No, No, No.....
See my earlier comments, the Regulator doesn't do anything when an Alternator is fitted. Don't waste your money getting a new one.
Retention of the Regulator on a conversion is purely cosmetic value, 'looking like it should still' and acting as a place to join a few wires.
if it looks alright from the outside, just leave it there.
Or replace it with a Terminal box as fitted to later cars built with Alternators. should be a lot cheaper.
http://bestcarmag.com/sites/default/fil ... 161v49.jpg