Extracting from a link I found in Dragon's link above:
Volk (a division of Rays) may make a custom wheel that would work (CE 28N is the style)
Stellacorse wheels for the Elise have been made in one custom pair by Sector 111. I've sent them a note to see if they could do more.
There is a wheel shown on a pace-germany.com picture, but pace germany is a car retailer not a wheel OEM or retailer.