I would like to buy rear hubs and all four hub caps for early hayes wire wheels like picture.
PM me if you have something.
Did I see those wheels at Chickasha?
Yes that is where I bought them, and I found front hubs and one roached hub cap. Looking for rears and caps.
There is a hub on eBay
In my experience, rear Hayes hubs are most frequently worn out in the taper and/or the keyway. Best approach is often to use a pair R&L of Hayes front wheel hubs and modify. Use a good pair R&L of wood wheel center hubs, machine the rear hub OD and the Hayes ID for a press fit into the front Hayes hubs, and heat/press into them.
Finish by welding or brazing around the inside front joint, and around the ~6" large diameter on the back side. You might drill a couple of side holes also and plug weld the outer to the inner there too. It likely is best to make and install new drive pins to replace any worn pins on the Hayes hubs before doing this.
With careful workmanship, you will be able to get a very serviceable rear hub unit.