Help with Proof of Concord Kept DS3 PC

so like obviously its kinda of hard to coordinate like farming the proofs with people but if anybody has any tips or anything or like even has a couple extra to give out that would be amazing these knights are driving me insane. and before you ask my farming setup is optimal except for 1 I dont have a high luck stat and B I dont have crystal sage rapier because im trying to do 100% and I took the sorcery instead