Check my thread below for info on EMGO replacement mirrors. They are a little shorter than OEM but I am very pleased with the price. They will work with any VFR from 1990-2001 without any modification needed.
http://www.vfrdiscussion.com/forum/index.php/topic/63682-bye-bye-condom-mirrorsemgo-replacement-mirrors-on-my-3rd-gen/
Rollin