Best Solution for Temporary Wireless Extension for Businesses?

One of the services that my work offers is extension of WiFi and internet services. Sometimes this is as simple as running a temporary Ethernet cable from a switch room to a UniFi AP and then chaining the APs. Other times there are already, say, UniFi APs preinstalled on-site and the signals from these APs don't reach target areas for events being held on-site. We have a job coming up similar to the ladder scenario. The requirement for this event is that a specific room at the hotel/spa needs a switch in their room that is on the same network that the UniFi APs is transmitting. We are currently going to use a TP Link router to WDS Bridge it to the existing WiFi signal that is being transmitted from preinstalled UniFi APs. From the bridged router, an ethernet cable is going to be ran to a PoE switch, which will be the available switch for the user within the room.

I'm here because my employer had me come up with this solution and would like me to also find out what the professional/better alternatives to this might be. Should I be looking at any specific Ubiquiti devices that are capable of accomplishing this same task? Are there other brands or devices that can accomplish this more effectively/more simply?

Thanks all in advance!