hmmm I just browsed their site, can't find anything on conversion fenders. I would go with Masa fenders, they come in either single vented, dual vented or non-vented. Superior quality and fittament and are fairly cheap now (about $450) compared to the 800 they were a few years ago.
http://www.raretrick.com/index.asp?cat=1909&Page=1&Display=Yes&Back=Listings&ProductsID=7570
http://www.raretrick.com/index.asp?cat=1909&Page=1&Display=Yes&Back=Listings&ProductsID=7570