I have few Paulson racks and many Chipco racks. If you didn't score what you need, let me know. Obviously, shipping from Canada will kill it, but figured I'd offer anyways.
As stated above, Chipco racks fit nicely too. Are the Paulsons mint? If they’re worn, they will fit slightly loosely in any of the nice racks discussed. They need to be really worn to fit 21 to a barrel.