I saw that Rhode Island Wiring service offers a M3a1 Scout car wiring harness in thier catalog, $326.00 for the Dash, Engine,and Taillight harness, and $176.00 for the headlight harness.
Does the Scout Car wiring differ much from the Halftrack wiring?
Also they claim that you can send them your harness and they can repoduce it. If it is something that they think they can add to thier catalog they will sell it to you for less than it costs to make the first one. I'm going to call them and see if they will give me a ball park figure for an M2a1 harness with pedistal headlights, I'll let you all know what I find out.
I spoke with Travis at Rhode Island Wiring this am, He said if you send him a harness take lots of pictures to send with it, tag what you can and send a wiring diagram if possible. He also said its about a 12 to 13 week wait right now for a quote and there is no obligation to buy. He also said the price should be similar to the Scout Car harness, but don't hold him to it.