relocating sink with lead drain pipe

[nelson87]

I have never encountered lead piping before and i have a few questions.
I need to relocate the sink i have but dont have a clue were to start. I know i need to replace the lead but how? Heres a few pictures of the mess i uncovered under the floor. And also does it look like the toilet drain pipe is lead?

 

[johnjh2o]

It's all lead and should be replaced. You have to go back to were the lead ties into the cast iron and replace it from that point.