HID Conversion on my 73 Duster

Got a couple questions. First, was the reflector an off the shelf design, or is was it designed from ground up for a HID bulb? Also, do you have any photometric test results for them?

I've sometimes thought about putting a few high tech touches on my Dart, but there's a lot of poorly done designs (on one forum, a bunch of Moostang owners were complaining of a company's HID conversion causing them to lose their high beams!) out there. I'd be interested in seeing one done right.