I broke down and bought a set of 5 F60x15 Goodyear Polyglas GTs for the honeycombs. Nothing looks better than the original equipment tires.
These cars came with either the Polyglas GT or the Firestone Wide Ovals. I like the Polyglas' better since the version of the Firestone Wide Oval that is currently reproduced is not accurate for the car.
Plus, there is a fellow enthusiast who hangs out over at the Performance Years website, who managed a package deal from Kelsey Tire, for a bunch of us. The end result was that the final price was reduced a good amount (about $10-$15 per tire). That savings adds up with 5 tires.