Far as I know they used three styles of rims on the EN500 Vulcan 500. 2 Aluminum I have seen and the spokes. They are more or less interchangeable with a few minor things that you have to deal with.
Biggest one being the speedo gear is on the opposite side on later years, IE aluminum wheel years had speedo gear on the side with the Brake. Later years Spoked had on other side. When I installed my Aluminum rims I noticed the forks have 2 nubs that keep the speedo gear from spinning. Those nubs arent on the side of the brakes so the speedo gear has some play in it.
Other than that is was more or less a plug and play changeover. Unbolted from one straight from the other.