Here are the 5 3/4" HID's on Dapper's site. Didnt' realize that the 5 3/4" units are low beam only.
http://www.dapperlighting.com/collec...ctor-headlight
Since those are low beam only, I'd get a pair of spot-pattern 100W Par46 (5 3/4") bulbs for the high beams, they're used to land airplanes so they'll be plenty bright enough

I have a pair in a set of fog light housings that are wired in to the highbeams on my VW, and the long distance visibility is incredible.
http://www.ebay.com/itm/Wagner-Par-4...item3cd6344fa3
Another option is Par46 housings that accept an H3 bulb.
http://duckworksav.com/Upgrades.html