Mine is an ac car, so the pulleys are different. Also, mine is a Frankenstein car, so no telling where it all came from. I think the 5.75 (or close to that)water pump pulleys are fairly common. If you take some pictures of yours with a tape measure on the depth & post a wanted ad on here, you will probably find one.
I can’t really tell from the pictures, but it looks like you are running an aluminum (70 - up) water pump - bottom outlet on the passenger side. That makes a difference, as the water pump snout is longer.
