My cockpit sink in my 310 Da. was scratched then to make things worse I melted it when I left a rag soaked with acetone in it. Ordered a Heng's 20337 10" x 13" stainless steel sink from Amazon.Had to open up the hole at one end about 1/4" plus made 4 small holes for the clamp screws which I didn't use.I was able to use the old drain fitting.