Clipper Marine is a great boat
We sailed a 26 foot flush deck Clipper Marine for 18 years. Lots of smart features.Our current boat came with a hot water heater and we just had to replace it. On the Yanmar 2GM20F you just plumb into the fresh water loop to supply heat to the hot water heater. And connect to the A/C power side for heating water at the dock. Our water lines were already there.On our 26 footer, we had water lines running from the water tank to the sink. Does the 30 have a cold water shower? You must have some kind of head now.Good luck updating your boat. I just had to write because we loved our Clipper Marine so much. Crealock was the designer and we saw him once at Larsen Marine in Waukegan, IL. He did the Pacific Seacraft and we have tremendous respect for his work.