I stumbled onto some good looking left and right-hand threaded rod-end heim joints today in a local industrial parts liquidator store that will probably work fine. At only $11 each, I'm going to go with them. They look very well made and the races seem like the expensive ones described in the McMaster catalogs selling for twice the money. Wish me luck, at least the swaybar application they're going to be installed into to isn't exactly super-critical.