Hard-line is used by cable TV providers to build the pole mounted distribution network. !/2" and 3/4" are capable of low attenuation and can carry a lot of current to power inline amplifiers.
You uncles hill is a rather prime location to try the Wifi connected remote tuner idea... I was hoping you were going to send me a plane ticket so I could watch you build the first one...
I'm not sure which would cost more, a 200' tower or the remote tuner idea... the tower I think.