eBay
Up for sale is a UFO front fender removed from a 1972 Husky WR450 but I believe it fits Yamaha XT600/350 or it could even be a universal type.  There are scuffs, scratches, stains, and general wear but it is in good condition overall and could be buffed out to look like new.  There is a metal bracket screwed into the side and a hole   Thanks for looking!