I found a set of offset Hartge 5 bolt rims at a shop yesterday, supposedly from an E30 M3. I didn't ask how much they wanted for them.
fronts: 16" x 7.5"
rears: 16" x 8.5"
They have the caps, but the Hartge emblems are gone, or have been covered up by BMW roundels. Also, someone painted them black

. Other than that, they look sweet. If you were willing to strip them and have them refinished, they would look siiiiiiiiick!! **** I need to do a 5 bolt swap!!