Evening All

I'm after a bit of advice, I'm going to cover areas of my cockpit on my cabin cruiser with fabric. The fibreglass is showing its age and there are drill holes etc.. all over it so its in the process of being boarded out and will be covered with a waterproof pvc style fabric. I would like to use a similar fabric for the cushions. Any ideas of what I could use and suppliers, I've had samples for Boy Riven which are good but pricey.

Cheers

Stu