Brian - Old Growth Dave had (has?) some decragard that he was willing to sell by the sheet to C-Brats. He has the pure white stuff which is a slightly different color than the slightly off white that the factory uses. I got a sheet from Dave and used it to make shelves within the cabinets and to make a shelf behind the aft dinette seat.
In the boats with the fiberglass interiors (like mine and yours), it's not so critical to have a perfect match to the decragard the factory used since it's only the cabinet doors and the counter top that are decragard. E.g. the places I put the pure white decragard are not directly adjacent to any off white material and without me telling you about the color difference, you wouldn't notice it (of course now that you know about it, it will stick out like a sore thumb). Also, I plan to replace the cabinet doors with wood at some point and probably will do formic on the counter top. At that point the only decragard you will see are my shelves.