I'm in the process of putting new gunwales on what was my dad's old SEDA Royalex 15'4" whitewater (I think) canoe, but am having a lot of difficulty finding decks that fit the boat (the wood gunwales are rotten, I'm putting on cheaper vinyl ones). I figured if I knew a bit more about the craft, I could narrow my search, or at least employ the help of someone who knows what they're talking about. The serial number is SDDFC3740281, though it's possible the F is really a P. Anyone know where I can find out more? Thanks.