I am in the middle of remodeling a bath. Down to the studs, and will be adding an additional sink. Currently (for over 50 years now, house built in 1950) the copper pipes for the tub and the original sink come out of the slab. Would it be a good idea to, at this time cap off the copper pipes coming out of the slab and bring everything over and down? I have a pretty close shot at water heater.