Get a bike, ride it, get a Bag, get a map, get a list of the companies and ring them and ring them again... and then ring them again.. and keep riding.

Some companies are not fond of "fixed" wheel bikes.

Mail call
Crisis
messenger post

there are more but "as you go"

good luck

oh yeah , Helmets are Law here in N.S.W.

Punch it chewy

"I am the Nightrider. I'm a fuel injected suicide machine"