I had a plumber quote me R26k to run 3 cold water lines, 2 hot water lines and 2 "mixed" lines, and a 50mm waste pipe in my renovated bathroom.
Cold water lines sum up to around 12m of copper plus 6.5m of chasing
Hot water lines around 8m of copper and 3.5m of chasing
Mixed lines would be around 10m of copper and 4m of chasing.
50mm waste pipe is around 2.5m in total
I went and bought all the stuff myself, and have spent maybe R5k on copper pipe/fittings/solder etc, and it took me 2 days to do the chasing (not full days) and 2 days to do the plumbing (again not full days). I still have around 15m of copper pipe left over from this bathroom renovation, that I can use when I get around to the other bathroom.
The pricing these guys charge is actually just mental.