You have a 1957 Crestliner Viking14, model 730, but you knew that already. If you redo the rear seatback, you may want to make it be an inch or so above the aft deck like original so passengers don’t get a horizontal stripe across their back from non-anodized aluminum on the deck edge.
Here’s my 2nd try at posting photos of my boat like yours:
You have a 1957 Crestliner Viking14, model 730, but you knew that already.
Dave
