in the very early 2000's and the only time myrtle beach was in my sight, i dropped by kligs kites near the beach, and picked up a small spectra sports kite (which i still have), as a kite wasn't in my travel gear.
it's great to see they're still around, as it was a pretty cool shop with friendly people.
as for the part, if you can't source it, it would look a good candidate for 3d printing (though i have no personal experience). iirc, these are pretty hard with just a tiny bit of flex. http://www.3dhubs.com/salt-lake-city
if you went the 3d printing route and had no original for a scan, or measurement, i might could help you there (if you returned the piece after).