Reply to "blinkers and taillights,,,same circuit/fuse?"

Great to hear Snow White has "seen the light".
Reading 0.17V / 2.94k ohms on the ground wire is not correct, should be 0V / 0 ohms, you can compare it with the other side. The relays should not be switching the ground, it is most likely a bad ground. You can never have too many grounds and on most Pantera's you have the main ground under the dash and one at the back for the rear lamps. Hopefully you have more grounds added with your relay kit. If you want to add a ground into the front area and not drill any holes etc, use the mounting studs for the engine radiator fan relays. Link a black wire into the main wiring loom inside the right front fender and join it up to any of the black wires you see in there.
As you have a single element headlamp, I would wire the low beam, high beam and headlamp flasher to illuminate the same single element. Not sure how strict the police are in your area or what your states inspections are, but it will at least bring a light on in all situations.