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Small bathroom reno - Plumber required ASAP

I am renovating a small bathroom. I am replacing the bath, basin and toilet. I need someone to come and do a pre-pipe on Thursday 11th so that I can then gib the walls then I would like them to come back on Monday to finish off once the walls are on. It's an old state house so existing pipes are copper. Its also low pressure. Mostly its a like for like replacement except the new bath will swap ends with old bath so drain and water will need to be run accordingly. Unfortunately someone pulled out on me at the last minute - hence the tight timeframe. Hope you can help