My RFSV weighed 2,280kg at the weighbridge when rego'd. I removed the spare tyres, spare tyre holder, jerry cans and holder, side racks, canvas, and supports, door tops, all tools etc, and I drained the 2 tanks which were both full at auction. If I had thought about it early enough I would also have removed the winch, but had it booked in and didn't want to miss my inspection.
In WA rego costs $0.2168 x (weight in kg rounded up to nearest 100kg) +$18.70 flat fee, (so mine would have cost 2300 x $0.2168 +18.70= $517.34