I need to find a source of.013 gauge 14kt gold wire or even finer
that can ship immediately.
You might try Hauser and Miller (hauserandmiller.com), 800-462-7447
in St Louis..013 diameter wire is between 28 ga (.012") & 26 ga
(.014"). I've gotten 30 ga (.010") from them with no problems.
Usual disclaimers, just a satisfied customer.