I see them at swap meets from time to time ..

The Spyders go for around $180.00 a wheel unrestored ..15 x 7's

The flys I've seen just a few times . looks like they ask about $500 for the 15 x 4's
and again "non" restored

The lips of fools bring them strife, and their mouths invite a beating.Proverbs 18:6