From what I heard, there's already some of these 2.5L IMRC covers being made in 2x2 twill C/F that will be available in about a month at around the 150-range, but I have to double-check with the guy getting them made. So if you're looking to get this product developed, you might want to wait a bit since it's already in the works, IIRC.

2001 ATX V6 Dark Shadow Grey Merc Cougar(Sport Pkg, ABS, traction control and sunroof )