Scottydl has 16" chrome torque stars from his deceased Bonneville, I have 17" 2000+ Bonneville SSEi rims on my car, and I have seen (on the road around here) a white Classic Aurora on alloy Intrique rims (yuck!)
Essentially any 16" or 17" OE rim from the General will work, the bolt pattern is 5x115.
See my sig pic. I agree, those 2nd-gen chromes do look GREAT on the Classic pictured above!
FWIW, I was at a tire shop on Saturday getting my stock rims dismounted from their tires, and the shop owner told me he has a set of OEM Classic chrome wheels for sale. If you're interested TX (or anyone else), PM me and I can see how much he is asking.