Bathroom Renovation Job - Orange Grove, GP, 2192

I need the two kitchen taps replaced. Not sure what exactly is wrong with them but my landlord has covered and labelled them saying 'do not use'. The bathroom sink has a hot tap that also needs to be replaced. There is an old bath with a vent that is duck-taped to the side, paint is chipping heavily from it and there is an opening to the roof directly above that keeps dirtying the bath with sand and spiders. I would like to fins out how much it would cost to somehow convert the built-in bath into a shower or whatever other options you might have in mind. Looking forward to hearing from you.