I want to give my three Deco P9 and my one M5 fixed IP addresses. I am using them in Access Point mode with my TP-Link VR2800 router. I have given them IP addresses using their MAC addresses in IP and

I am considering upgrading my home Wifi by purchasing a pair of P7 Deco and one other Deco. But what single Deco would be best considering I will be using them all with a VR2800 as the main router and