If your car has the 14" Millrace alloys, then there is a set for sale on Facebook. I have no connection with the seller, save to say that I think he's the chap I bought a '54 +4 from in 2008. Small world. Here's the link. If you don't do Facebook, send me a PM and I'll make contact with the seller.
https://www.facebook.com/marketplace/item/962049085972539/?ref=search&referral_code=null&referral_story_type=post&tracking=browse_serp%3A8b813e2c-53d8-40a9-abf2-8060b2210a7f