The VR is an old car now, and probably about worn out. The Omega sportwagon is a good car, and would be a good replacement.

DRIVING around Australia today is a very different proposition to what it was in the 1970s. The roads are much better, communication has improved out of sight, and there are more dealers and service agents on the route you're likely to take. Back in the 1970s you went in a big Aussie six because they were tough and unlikely to break down. They were also easy to fix on the side of the road, and parts were relatively easy to get in the middle of nowhere. Today, if you're sticking to the blacktop, I would take a Commodore or Falcon and there are plenty available within your budget. But if I were going off the beaten track I would think about a four-wheel drive with its higher ride height for ground clearance, its ruggedness, and its drive system. Early Nissan Patrols, like an MQ, or early LandCruisers would be good, reliable and tough transport.

The Commodore will need an upper cylinder lubricant added to the fuel if you run it on ULP. The Toyota should happily run on ULP without any additional lubrication.