My water main is steel (approx 1" OD or 3/4" ID). The stopcock leaks and is in the wrong place (above the kitchen countertop). I want to cut the pipe and fit a new stopcock, then reconnect to system which is all copper. Is there a compression fitting which will allow me to go from steel to copper so I can put on a new stopcock? I don't want the expense of die cutting the pipe!