It's an utter nightmare.
this is a mates plan after discovering it's close to impossible to hire someone to pour his slab for his shed atm, 12*27m slab
register as an owner builder
2 days training per heavy equipment ticket, $600 each
Coats/Kennard's will hire earth moving equipment to you no dramas even without the ticket if it is your land, but you want tickets so you have half an idea
Cut the block as needed
make form work.
lay reo.
hire bunch of old concreters, cash, beer on tap once done, on site catering, organised transport to and from site.
hire a concrete pump and operator if access is crappy.