Peter, if hardwired is not an option, then look at wireless bridging.
Ubiquity example:
https://www.msy.com.au/product/ubiqu...of-2-ubb-54408. How to tutorial:
https://www.youtube.com/watch?v=_46QuVNopsM
Or using Nanonbeams from the same brand:
https://www.youtube.com/watch?v=_46QuVNopsM
You can also risk with one of the many cheaper options like this one:
https://www.amazon.com.au/KuWFi-Wire...ge&sr=8-6&th=1
out of a bunch available:
https://www.amazon.com.au/wireless-b...ireless+bridge.
But as others have suggested, wireless could be unreliable depending on weather and other factors.