Headlight for my XR

[torgo]

Ok, so my winter project is my parts bike I used to rebuild my 83 XR500R.  There was just to much of a nice bike left that I could not bring myself to junk it out or ebay it off.  SO by spring I will have TWO XR500R's  an 83 and an 84.  The 84 has a street title and I am going to work on getting a title for the 83. 

The 83 will stay red per the original colors and the 84 will be black as the plastic was pretty rough. 

I don't have a headlight assembly for the 84 so I was looking around for something and original styles are in the 70 to 100 dollar range.  So I says to myself ( I own a KLR you know) there has to be a cheaper alternative.  I looked at the Trail Tech ones (me likey very much)

http://www.trailtech.net/1832-55-00.html

But at 275.00 I dont think so, although the 55W one would not overload my electrical system as stock was 55W and it would run on AC like the original.

Anyone have, or seen any alternatives?  Requirements are: no more than 55W and be able to run on AC voltages.