I'd contact White industries and see if they made a campag freehub for your hub. They have them for their T11s so it could be a goer...
Otherwise conversion cassettes are available from miche and ambrosio.
Or, if it's an 11s shimano freehub you could change to 11s Campagnolo and use a shimano cassette, as the spacing is the same.
already did that and they don't have a freehub body available. it seems to be 10sp only, so it's not compatible with newer hub parts.
any other hub besides the T11 H3 and Tracker should work.
this is what they sent me when i emailed them.
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I'd contact White industries and see if they made a campag freehub for your hub. They have them for their T11s so it could be a goer...
Otherwise conversion cassettes are available from miche and ambrosio.
Or, if it's an 11s shimano freehub you could change to 11s Campagnolo and use a shimano cassette, as the spacing is the same.