Wanted, cast stock wheels from a 1977 to 1979 Bird, Lincoln or Mercury,

[Ketchacar]

Need a set of 4, 15x5 or 15x6 factory stock cast aluminum wheels, often referred to as the Rallye wheels.
I have a 1977 T-Bird, all original with 12,910 actual miles, has the standard steel wheels and wire caps.
The wheels I want look better and I can move up a tire size or two.
Grumpy