Thanks guy. For most plumbing jobs I normally tackle the job myself but this one has me concerned as I thought that getting things off would be a PITA. I remember the last guy that replaced my water heater changed the valve and was using a torch to install a new valve near the water heater, and he did end up sorching my walls, which annoyed me.
I think what I will do is order the parts, try it myself, and worst comes to worse get a plumber to bail me out.
