BioMax
+1y
In most cases, you can use high quality 1/2" heims for tierod ends. The commonly used heims are called JMX or RSM (extra heavy duty). The problem with the 1/2" parts is that nobody that I know of makes misalignments for them. The smallest misalignments that I have seen are for 5/8" heims and in that case there isn't any reason to use the RSM series parts.
I would suggest using a RH on one end and a LH on the other, that way you don't need to remove the tierod in order to adjust the toe.