I hope you used a proper insulating foam such as Armacell marine grade which has microban and not some generic foam, or all of the anti-mold/fungus properties of the formica is basically for naught.
I am going through the same rebuild right now, pulling off all of the old hull liner due to mold and water damage, and the options are either replace with the same, or armacel self adhesive sheets/rolls which mold and mildew cannot survive contact with, and then some sort of covering over that. I am stuck on how I would adhere a soft or hard cover, such as your formica option, to the insulation itself.
How well do those formica sheets bend and contour with a heat gun to the curved surfaces? I have never worked with that material before.