Dan,
I would recommend you contact Jamie and Marty at Atlantic EH directly. They had a lot of stuff that's not listed on their web page. Also, I have found that certain models of Victory use a similar headlamp nacelle. The opening at the back is different, but the retaining rim, reflector and lens can be used on our bikes.
When I got 741, the retaining rim had a dent in it, so I bought a complete headlamp for a 2005 Victory.....Jackpot, I think it was. Anyway I used the rim, reflector, bulbs and lens. I had to make a small jumper to connect the bulbs to the existing EH plug, but it was very simple to make up. I won't say, however, that it's much brighter than the stock sealed beam bulb. It's about the same.
Mike