When building site-to-site connections one great solution, if you’re in range, is a point-to-point extension!
Used one of these to extend a WiFi network for one of my contracted businesses to attach a office across the business park (connecting to another router I already had). I found the setup pretty easy. Seems like a very high-quality product and GUI is very impressive. Approximately 75 feet from the main switch, through four exterior walls, and we still got a “full” strength signal on the NanoStation.