I have a nice sized bathroom on the second floor of my house. The problem is that it looks like it was hastily contstructed. While there is room for a large shower/tub, there is only a small corner stall, a toilet that sits right next to it and plenty of open, unused space. I would like to replace the small shower stall with a large, walk-in shower. The problem is that the toilet sits directly in the path of where I want to extend the shower. How difficult would it be to move the toilet about 3 feet? Would I just need to cut off the flange, attach an elbow to the existing pipe and route it to where it needs to go?