The logistical side of this arrangement is far from pretty.
Rex does need the oncarriage/incarriage from another carrier, but neither carrier is set up for it as their reservations and checkin systems are poles apart.
There is no way apart from a manual load on each booking to save information such as inbound or outbound connections, so through cecking baggage will be messy to say the least.
Rex is already a real airline, living in a Global Distribution Service (Sabre) but DJ persists with their cardboard and string internet booking engine.
Now would be a good time for DJ to bite the bullet and go full time live in Sabre.
The cost per segment would be more than covered by the until now untouched revenue that would be derived from International bookings.
Playing at airlines may be a hobby for Dicky, but sooner or later one has to get serious or get out.
EWL