The report says that Riccy could only support ops up to 737 / A320 size.
Terminal & apron facilities aside, surely the existing runway can support heavier aircraft than that? I've seen C5s happily get in & out of there.
OK with only 7000' of runway they might not be able to go very far, but surely at least a 767-size aircraft (so 787?) could happily do trips as far as Adelaide out of Richmond? Keg??