Frost hardwoods off Miramar rd has some 3 ply bendable sheet in 1/8th inch and they also carry hardwood veneers. Don’t think they have the epoxy resin but if it’s not super rigid you may be able to use just wood glue. other than that no-one I have found in San Diego carries anything in thinner ply. maybe call around. I had to soak the 1/8" plys in water because the radius I was using was too small for the wood and it would otherwise break. I then put them in the form to dry out, then I glued them together. very laborious process but it worked out okay.