Presently I have a 1 node - 1 router aimesh system. The node is my old Asus RT-AC88U and my router is my new Asus GT-BE98 Pro. It works well but I need to set up a 2 node - 1 router aimesh system so as to obtain greater range. The nodes will/are connected to the router via wifi. Which Asus should I purchase to use as another node? Should I ditch my old RT-AC88U and purchase two similar nodes. (For background/design info I need the extention converage to connect to security & smart home devices which primarily want 2.5GHz.) Thanks for your suggestoins in advance.