what is the cost of moving from riverstone to narranderra

If you mean Riverstone Sydney (west)?...We just moved from near Riverstone May 2019. It cost me $3,800.
2 men with a medium van.Not the huge ones. We only had three qrts of the house furniture. They arrived at 7:30 a.m. and we were on the road following them by 9:30 a.m. to Narrandera. We arrived at Narrandera at 5 p.m. exactly! Only stopped for car petrol twice. They unloaded and they would have got back to Sydney by 1 am.
It's a very long day for them, not many like to do the trip in 1 go. Another company wanted $6,000 . Look around. This was a father and son job, they were amazing peeps.
I think you would have to pay about $4,000 to a bit more because they have to be doing the job from start to stop for about 19 hours.(from leaving their home to getting back home).