Look up Stockton Wheels, or Wheels Vintiques. If memory serves me correctly, getting them off of summit racing was the hot ticket. Go with a 15x6 or 15x7.
Go to summits wheel section, and specify a 5 on 4 bolt pattern. What is available will show up.
Then if you find something you like, CALL THEM to see if it's really in stock.
ET also make beautiful five spokes for 5 on 4, not available at summit, and NOT cheap!
Don't know if you were looking into used or new but if I still had SBP I would consider checking these out for myself. Might be a little bit of a drive for you but might still be worth getting in contact with the seller if interested maybe?
My favorite color. I like the 67-69 styling most of all but this car looks amazing. I love the black stripe contrasting the blue paint. Some dig the white over the purple or blue but not me. THIS looks right.
I plan to shoot this car in a modern B-5:
I thought Stockton Wheel had been outta biz for years now???....
***EDIT*** Looks like they have a website, so I either imagined it or someone picked them back up???
Also be aware that although you may find some aluminum wheels (if that's what you're after, we don't know yet...) in a 5x4" bolt circle, you may not be able to find proper 7/16 LH lug nuts for the driver's side... so that would mean swapping out your wheel studs, too.