seats rebuild

Hi there I am buying a 1997 Sundancer that is completely missing the 48" companion seat. Anyone else know where I can find something similar for a 380, 400, 420 or where I can get one fabricated? Thanks much. Mark

So got a 1988 390 Express Cruiser. The captains bench and passenger side benchs both need to be replaced as they are wood and falling apart. Have had little luck finding replacement units though since the benchs quite high. Anyone replace the benchs and found a good solution