Wow, that's a mighty big sprawl there. "Honey, can you grab the Porsche and drive to the 7th room down hallway 5?"
This might be another solution for them:
I am not a big believer in PLC. Plus it tethers the PCs, then I might as well lay CAT-5. In the living area and even outside there are (switchable) CAT-5 outlets but you know how it is. Large dogs, some cat meouws in the street, big dog decides to have to be at the other end of the deck in milliseconds to deliver a "speech". Meantime the laptop sails off the table.
I reckon only folks in them thar southern states will be gitten what that means :-)