Finishing Basement, Help with Plumbing Pipes

I am finishing my basement and am starting to plan the bathroom, but I do not have plumbing experience. The house was built in the 1980’s and completely torn down to the studs and rebuilt in 2013. There are a few pipes in the basement that I need help identifying. Pictures are attached and any help is very much appreciated.

Basement Drawing:

Bathroom Space:

Pipe 1 on the opposite side of from the twin pipes:

Floor Hole 1:

Twin Pipes, Pipes 2 and 3: