well, you do want nice stuff in the way of spacers, otherwise you could easily get vibrations from bad balance.
What is the offset on the rims (it'll say on the rim right after the width)?
Then you can either calculate it yourself using Mike Focke's explanation and link (
http://mike.focke.googlepages.com/willthosewheelsyouwantfit%3F), or call wheelenhancement.com for assistance.
For the spacers.... again try wheelenhancement or:
allsprings.com
autoanything.com
boothedesign.com
Prices will vary greatly, but definitely get hubcentric spacers and the longer wheel bolts needed.
Good luck
