Can't remember the source, but one 'confined space' grower had pots lining his driveway. Each barrel/pot had a two metre stake with an eyelat at the top. He fed a few metres of cord/rope up and threw the eye. when the hop grew up to the top he would untie the rope and let in drop to the ground. He kept repeating this until the rope was fully 'covered'. He stated he was initially worried about heat/bugs/ect but he didn't have any problems and had a harvest.
Hmmm....
It's on byo.com
QldKev