My first preference in new wheels for 6018 would be authentic looking Campy Wheels in modern sizes (18" front, 19" rear), purchased via Mr Fiat.
Here's a link to Mr. Fiat's wheel info: Mr. Fiat Campy Wheel
The big problem, to have wheels manufactured in those sizes requires a minimum order of 8 wheels (4 pairs) in each size. So to do this, I would need to find at least 3 other interested parties willing to agree on tire sizes, wheel widths, offsets, etc; and (like myself) willing to shell out the bucks for an expensive set of wheels.
Unlike the 3 piece Campy clones (which can be had for about 1/2 the price) the wheels are one piece forgings, and are perfect copies of the oem wheels. The purchase shall be made in sizes that guarantee a wide selection of reasonably priced modern performance tires shall be available in front/rear sets for a long time into the future.
What I have in mind is building the wheels for a front tire of either 225/40R18 on a 18x7.5 wheel (15mm offset), or 245/35R18 on a 18x8.5 wheel (25mm offset); and rear tires of 285/35R19 on a 19x10 wheel (zero offset). I would like mine painted in the original silver paint, but I imagine that is something that could be specified differently for each person. The purchase would be made later in the year, after people have had time to put the money together, like perhaps after tax season.
If you're interested give me a PM.
Original Post