We just finished a custom headlite bar for a 32 Ford 3-Window Coupe. We built an adjustment system by machining stainless steel balls for the Indian Motorcycle headlites to fit on the stock Ford headlite bar. The customer requested that all wires be hidden in the bar. So a channel was cut in the bar for 2 wires to sit in below. After final assembly the channel will be epoxied closed and painted. This turned very well. Take a look at the pictures.