Where can you recommend that sells high quality good looking vinyl for offshore boat interior.
The best quality.

If you are patient e-bay. Ultraleather by ultra fabrics, is as good as your going to get. That is what I'm using in my Scarab. If you look, you can get it for $20-$25 a yard, which is the price you will pay for normal high quality vinyl. Retail is around $70 a yard. You need to be patient though and not in a hurry, the correct yardage and colors will pop up.

Order samples and look at the textures and how they feel. They will vary widely from brand to brand and style to style. It took me a solid 6 months of looking at, feeling, combining various colors and patterns to finally settle on what I'm going to do in the cabin. Now it's soon going to be time to start for the cockpit.

For the cockpit, I do know that I'm most likely going to use Morbern fabrics. Excellent quality, great selection, fair pricing, and wide color choices.

Good luck on your project!

Dont know if they have one near you, but I have used Keystone Bros. a few times

Rochford Supply , also Miami Corp.

I was just digging around on the Miami Corp site. They have Ultraleather under the Faux Leather section, but it's $90-$107 a yard.

You have to be a upholstery biz to buy from Miami.
The have excellent products , So there retail prices are crazy high on there website.

I was going to say, those prices seem a bit high.