Yes Sir, you've got MORE than enough cloth. Ditto on plywood. If you find that the surface is like stupid uneven after putting a few layers of cloth on top of the woven roving, you can save yourself a bit of coin (in epoxy) by mixing up an epoxy based filling/fairing paste. Go to www.westsystem.com
& you can download all of their user guides there (as well as their excellent book "On Boat
Construction"), and some recipe's for various fairing putties. Ditto by going to System Three Resins - System Three Resins, Inc.
and any of the other big fiberglass & resin makers/distributors.
Obviously you're going to be painting the cockpit
sole with nonskid, but prior to getting to that stage, if you're unhappy with the finish & it's evenness (even after fairing it), you can flowcoat it. Basically that's pouring resin onto a surface & allowing it to fill in all of the little pin holes & fairing goofs. It explains it better in some of the texts on the West System site.
Also, as an FYI for the future. If you're doing work
with glass & epoxy which requires much thickness, & or is a structural application, a lot of the stitch-bonded fabrics like triaxial are a lot cheaper per pound or square foot, than is woven cloth. And when applied right, stronger as well. But it's not worth worrying over.
Just remember, it always looks the worst, right before you put the first coat of paint