Hi Jonathan, Just to confirm with you first; 3 items in this kit are EOL, namely ETC-20911_DNU (21172), 5500M-GLO (1435-0900) & CHA-420(GL10). In the brackets I've mentioned the replacement MPNs. Before I quote this for you, kindly confirm if these 3 replacement items would be acceptable so I can quote the kit as a whole. I'll wait to hear from you. Thank you!!