ISO: Nunn Finer Fetlock/Hind Boots (NOTHING FOR SALE, IN SEARCH OF)

I’m in search of hind fetlock boots to match the open front jump boots I fell in love with from Nunn Finer. The first pic is an example of the one I’d be ideally looking for and the second two are the ones I’m trying to match. I got them used recently so I’m not 100% sure but I believe they’re the Thermoplastic boots. Need to be black and medium/horse sized. Used is great as long as usable. I found brown ones online, but I’d really like an exact match 😭 Again, as title states, nothing for sale here, I’m looking for any leads on these boots for sale!!! Thank you 😊