I have an AV1000 powerline setup at home, the base unit near my router at one side of the house and the other unit in my home office. i would like to add wifi repeater capability to this, but I can only find KITS for the wifi adapter, not just a single expansion unit. Doesn't TP-LINK sell an individual wifi access point adapter that can integrate into an existing network? Because if so, this is extremely short sighted on their part. :(