[rpmerf]

I did mine a bit different from what you have shown. It is closer to what they have done in some of the links. I used 2 relays - 1 for high beams, 1 for low beams. I put the relay under the hood on the drivers side fender, and grabbed the power from that junction block.

30 - Power from the junction block. Fused, 20A.
85 - Ground
86 - High or Low from the floor switch
87 - To the headlights

I replaced the wire between the relays and headlights. I used 16ga wire and new connectors for the headlights.