By Internet searching I was able to find a set of used oem 17" rims, for about $80 each plus shipping. Shipping was not very expensive, even all the way across the country. Downside is that they had corroding and peeling clearcoat, and needed cosmetic refurbishing. I did them myself and they didn't come out perfect. I have no way to renew an anodized finish. But they look plenty good enough for winter tire use. They easily pass the 10' test. Clear Plasti-Kote makes an excellent thick clearcoat.
I could have gotten a set of flawless used 16" compatible oem rims for about $130 each, but I wanted to be really cheapo. And for whatever good it does, all the tires and rims I have will be interchangable.
So now I also have an oem alloy rim to use with the spare, and absolutely no concerns about how the rims fit.
To find used oem rims, I'd suggest checking with wreckers, dealerships (in case they have any used rims laying around), kijiji, Craigslist, eBay... As I mentioned, shipping is surprisingly cheap.
The other good thing about going to the trouble of finding used oem rims, is that it's less environmentally damaging than causing new rims to be manufactured while used ones end up being melted down. Even if they're shipped from afar, so are the new ones.
