Extending sky wifi to outbuildings

[Coops17]

Hello, we have sky broadband and a few Tapo WiFi cameras connected via tp-link extenders. We recently received a new WiFi hub from sky as ours was no longer supported. It's the black one(?)

My question is how do I create a mesh network to enable outbuildings to be in range of the WiFi network. The furthest building is around 80metres from the house. 
I think I need to add a mesh hub to the sky hub to allow the tp-link extenders to work in a mesh configuration. 
im not completely certain about how to structure the network, so any guidance is appreciated. Thanks in advance. 

[JimM1]

@Coops17 Trust me you are not ever going to get mesh working over that distance, pigs will fly first! Even with powerline you are pushing the limits...

[Chrisee · Accepted solution]

@Coops17 to create a mesh network you need matched units so look for additional units from TP-Link thst match your existing inits if there are any or buy a suitable third party system which you can connect to your Sky hub in access point mode. If you have Sky Q boxes connect them to the hub's wifi.

80m is beyond the usable range of domestic wifi equipment the best solution is to run an external Ethernet cable to the most distant point anf install one of your mesh nodes there. You can buy commercial equipment to send wifi in a beam between buildings but the is specialist kit.