My 98 cruiser had a Wallas that was ruined. I removed the original counter top and used it as a template for a top that was built of oak . I just caped off the exhaust vent from the inside. Nothing magic. I really can not comment about "removal" of the Wallas itself as mine was gone when I got the boat. I also pulled the sink out as I'm on fresh water and found little use for one. For me a "less is more" concept works to enable trouble free boating and fishing. Boat heaters are a PIA. I was looking at wood stoves.
