You can wire the parking lights to stay on with the headlights. Just pull the parking light wire out of the headlight switch. Then connect it to one of the headlight/taillight wires coming off of the switch.

I'm going to run LED "flashback" daytime running lamps on my 68. The DRLs turn off when the turn signals are on. All I did was plug the parking light wire into an ignition "run" wire. They will come on as soon as you turn the key. I also ran the wire through a toggle switch just in case the LEDs are too bright at night...I can turn them off.

I also bought some halo lights. The halo section has two sets of wires around the outside lip. This interferes with the headlight bucket. My plan was to buy another set of buckets to modify. If I end up not liking the look, I'm going to wire up the lights/old bezels/old grill and mount them on my garage wall.