channel balance marked 26-5 JX CMC 7

I'm replacing channel balances whose string/cable has snapped. I believe I need to buy S385-27.Your page says the metal channel's width should be 9/16, but the channel has a slight lip at the front, and I'm unclear whether to measure the width at the front, back or interior.The winged channel top seems like a 19-005 based on the width of the wings and other dimensions.I'm less certain about the shoe but I'm guessing this is 15-004. I would have measured the depth as 1 1/16 rather than 1 3/32, but more I'm questioning whether the round carved out section which aligns with a hole in the channel, is important.Please advise! I have more photos but your website limits the number to 5.