Here is the link to the Central Park Hoodie
Here is a website that makes zippers
in dozens of colors!
I'm satisfied to have a neutral colored zipper, for example, I used a gray zipper in my Denim Blue CPH.
I haven't tried the KnitPicks version of Cascade 220 Wool.
However, I'd guess that it's a fine alternative! And I haven't compared the yard by yard pricing either, but usually KP beats a "name brand" of comparable qualities!