I got one bathroom of drainage repiped today, and got the PVC ran to the other bathroom. Pulled the toilet, replaced the flange, reset the toilet, dropped a new drain pipe for the lavatory, piped everything together underneath,, ran it past the hall bath with a temporary connection to the old cast iron drop for that bath, and attached to the old cast main line. That included demo of the old cast iron in the master bath.
I am tired and my knees are sore.