powerline with wifi adapters built in arent a great idea. Sometimes its better to compartmentalise which is why desktops still come with slots rather than everything embedded, Even many laptops still allow you to change ram, drives,cards and even batteries as only some solder everything onto the board. Compartmentalising increases lifespan (less waste) and means less things to go wrong. Powerline adapters with wifi dont do as well as those without any wifi or switch.