[ale] Slightly OT: Retro-fitting Gigabit Ethernet in House?

[neal at mnopltd.com]

Number One Son has bought existing brick house in Austin.

He now has Google Fiber coming through the outside wall on the first 
floor.

His office is on the 2nd floor.   Yes, for his job he can make use of 
the extra speed. The only provision for ethernet is some coax of dubious 
caliber.

He's wondering if any of the powerline adapters really work at gigabit 
speeds.

I'm thinking the path of least resistance is to:
- Get Google installer to re-do, and bring Fiber in at the 2nd floor 
office.
- Put Wifi router there for the rest of the house.

BUT are there other options short of pulling Cat-6?

regards,

Neal