I found a local supplier a year or so ago in Arizona USA.
Sticky Stuff. The owner is a nice guy and recently suffered some health setbacks and so did his wife. He still works the store every day.
What they sell:
epoxies,
polyester resin, vinylester resin, marine clear gel coat, mekp, sandpaper, mixing cups 1oz,4oz etc, 6oz fiberglass cloth, tooling supplies, modeling clay, squeegies, mixing sticks, high temp mold releases, normal wax release, spray releases like polyease and NC770, and other sorted supplies. He does not sell much carbon fiber.
Here is the info on it. I’m not sure if he ships but you can always ask.
http://web.userinstinct.com/2103598-sticky-stuff.htm