I just looked at the ETK. As I thought...the E-30 16" no.5 cross-spoke is not the same wheel as the E-28 M5 16" no. 5 cross-spoke...two different offsets. E-30 M3 version is 27ET...why it has less visible lip and E-28 M5 version is 20ET. The E-30 wheels you are looking at won't bolt without a spacer to the E-34.
George