Would Knight of Morr even work according to their Scriptures ? (Either: Don’t talk, don’t be funny or another I’ve forgot), also Knight of Morr aren’t Warrior Priest, they are more like Templar (Armoured force of the Cult)
Also Warrior Priest does fit Saltz physique (Proof)
And Sigmar’s Would be the least constrained of all the Warrior Priest possible (Baring Myrmidia and technically Manaan), as lorewise they can use guns,
Blind Warrior Priest that use a big gun (thank you Ghoth1ckov1tch for having this guy in an old post, I couldn’t find it anywhere