I guess you haven't priced the Fiske, Champion and BBS wheels lately.
By the way, these are ONE PIECE FORGED WHEELS not cast alloys that will bend like a pepsi can when hit at the wrong angle.
In either realm cast or forged, anything below $3K is considered a steal at 18" Weak dollar is making imports very very pricey.
And these CC Wheels are being reported as being very strong AND light enough for track duty. I might look into a set of these for summer use and demote my Carreras to winter use, I don't think they will last for year round use without another 3 dents per seasons.
p.s.
I spoke to them on the phone and 8.5 is as small as they run for 18".
But here's neat part,
20 pounds for a forged wheel
Lighter and stronger than turbo twists or other Porsche OEMs.