I used thes guys for my replacement BMB. I had to send a paper template but for the Bayliners I am sure they will already have a pattern.

Their carpet is ther real deal and you wouldn't need to replace it again. I was very pleased with price and service!

They're called 'Snapin Carpets' Here

Don't ask them to fit the poppers though as they will never be exactly right. Just get them to send some poppers with the carpet to add when you get it.

You will need their poppers though because the centre pin is longer to go through the thickness of the waterproof backing.