Who makes those wheels for IM?
They were the "Bivens" wheels. Alex Bivens did a run of them with Coddington (if I'm not mistaken) about 15 years ago. They were stupid-expensive at the time (like $2500 for a set of 4). I wanted them, but didn't have the money at the time of the build.
There was a guy named George Brown on this site who was the first guy I ever came across to treat a replica like more than a toy. He sprung for a set of 15x6"s in the proper offset for his IM build before he passed away suddenly.
The guy who bought his car was a piece of work. He didn't want the wheels, and we made a side-deal for $1600-ish for 5 of them. They arrived pretty scratched up. I filed out the curb-rash, brushed all 5 of them with a scotch-brite pad, and sent them up to Chicago to get a "crystal-clear" powder-coat job. They looked better without the coating, but if you've ever tried to keep brushed AL looking good, you'll understand why I did what I did.
I also did the same thing to the CB brake hubs (front and rear), only I did them myself with a home powder-coat kit. If anybody is thinking of doing this-- don't. Drum-skins are about 500x easier. The main issue was that no matter how well I cleaned out the hubs, traces of grease kept leaching out when the hubs went in the oven. I ended up stripping and redoing those stupid hubs about 5 times.
Like most things, something only I cared about.