depends where you take it etc approx. $300-400 for the inspection
plus what ever they find worn ,faulty etc , brakes , suspension joints , tyres , lights etc
rust ??
plus 200-300 for new plates and rego etc
but be careful if it has had any major past body/chassis damage etc
if they see anything like that , will require a engineers report etc , and a engineer will only sign it off if he sees it all stripped back etc
I would want to get it up on a hoist to inspect it 1st or at least up on jack stands and go under it with a bright light
pull back boot carpets , wheel arch liners etc
good luck