Excuse me while I pat myself on the back...
Well I did replace most of the copper plumbing with reinforced clear plastic. I removed the panel under the toilet and in front of the bath tub and then stood on my head while working in the closet to replace the lines.
Getting around the tub was the hardest part so I left the copper there.
It was a little awkward at first untill I learned how to lay where to get the best working position.
All is working great! I have not put the panels back yet but that should be a task for this weekend after I see about insulating everything.