Ansett had the B737-200 "Advanced", which had the PDCS, RNAV (with the "Space Invader" - a movable + that allowed you to find a hole in crappy wx, and track direct to that # waypoint...something that was, imo, a great innovation that was discontinued) superimposed over THE (one and only) colour wx radar, and A/T.
Who knows, perhaps these aircraft of OzJet's may have similar systems.
Abeles started Ansett New Zealand with clapped out 737-100 series - reported to have cost him only $1 mil. each, and grew it from there.
Tarted up, the punters who paid didn't know the difference - they looked great outside and in, and the extra service that Ansett N.Z. provided over Air New Zealand's "candy service" brought customers to Ansett in droves.
Good Luck OzJet - I believe there's a niche market that has been ignored by the incumbents for too long.