sevo, the answer to some of your questions can be found at the links below.
Coalition may increase FTTH NBN rollout: Turnbull
Last Friday, Mr Quigley told the parliamentary committee overseeing the NBN that it costs between $1100 and $1400 to route fibre directly to the premises.
The Coalition assumed it would cost $3600 per property, and therefore only allowed for 22 per cent of premises across Australia to be connected to the NBN in this manner.