As it's been mentioned by a few 30K for a bathroom rip and replace is pretty standard where I live….in Melbourne's wealthy Eastern suburbs.
Tradies 'add' an bit on top cause they think everyone is loaded….which most are around here.
I call it 'overpaid' for what they do for a living. Most are lawyers and doctors, or worse still medical specialists….so the rest of us cop it too. Any where else would probably be half the price.
I do my own renovations thanks, as I reckon I do as good a job as most trades, but it takes time. It's not hard…tiling is easy as is carpentry….I draw the line at roofing though and guttering, but don't get me started on kitchens….
Naturally I have done my own
Matt