All I get from that link is the diesel pages logo and a blank screen

In any case, no need to reinvent the wheel here.

Even if you use the new style reg, the only change is the second terminal from the alt is wired back to the reg. It grounds there(through the reg). The first terminal gets key on 12 v.

The existing key on ign lead at the reg, can do the same thing with the new style reg.

You can't ground a terminal AND use the newstyle reg. The newstyle reg IS the ground for the charging field.