Don’t have any dash, dome or tail lights when headlights are on?

Theres no wire grounding your alternator. That green wire is the Field. To keep it simple...Another way to check to see if your Alternator is grounded, (with battery connected) You can clamp your 12 volt test light to the POSITIVE side of the battery and (carefully) just touch the light to the alternator body it should light up if its grounded properly. The Alternator grounds through the several mounting bolts to the engine and shouldnt be an issue, as long as the engine is grounded, through the chassis.
You can also touch any metal component thats bolted to metal to check for ground like the Voltage Regulator on the firewall.
It s just to check that the components are completing the path to ground.
DO Not touch any hot leads while hooked up to the Positive.