I'm having to reverse-engineer a '64 1/2 main wiring harness where a PO added a 5-dial instrument cluster. The oil, gen. and turn signal wires were cut and the lamps tossed. All three of these lamps are the type with two wires and NPD doesn't sell them separately from the main harness. Any chance that there's a style of these dual-wire lamps available aftermarket that will fit in the original cluster?