I'm no "free market" advocate... but you have to propose something that's going to bring the majority of people with you... and the current economic story with credence (deserved or not) is "the market" as told by our current crop of economists and commentators in the media (and think tanks). So a little pandering to it wont hurt.

Simply, I suggest focusing on the two transport issues identified.
The rest is "distraction" at this stage.

There is enough detail there to chew over for a 50% cut in fuel use... without regulating elsewhere.

The more grand the plan becomes, the more likely errors are and less likely you are to carry people with you.

In a nut shell - focus.