A couple of good and not overpriced salvagers:
www.specialtyaircraft.com [
specialtyaircraft.com] &
www.discountaircraftsalvage.com. [
discountaircraftsalvage.com.] I found brackets and sunvisors available from both for my C150D. Unfortunately I bought a pair of AFRC visors from a dealer for the brackets I found at Specialty and was very dissapointed in them. I had to modify them extensively myself to be able to use them without problems. Fortunately I am able to do that kind of thing.