why not just go to your local upholstery/carpet automotive shop and pick the
marine grade best carpet they have, several colors too.  they can install it
right there for you in a day.  i was quoted for my syncro recently at about
200 bucks for the job, with nice carpet and under-matting.  it's no big deal
to have a custom shop do the job for you rather than pay
shipping/handling/adhesive ect.....these after market venders do the same
thing your local shop would do, but they reproduce mass ammounts and sell
them like honorable good capitalists should....nuthin' wrong with that.

good luck, jeff