Anyone built or found a fan shroud to fit champion radiator??????

NO.

maybe when i get it all done.
all said and done, i spent 85 bucks BUT i bought way more than i needed for a fudge factor. a gallon of resin a piece of 5/16 or 3/8 mdf because i wanted to be able to really strech it into shape if i had to and 2 yards of fleece, which i found when making speaker enclosures, you can use all kinds of stuff, it just has to be strechy. ive used t shirts, the fleece works good because its strechy and when you fill it all up with resin it winds up pretty thick.