which Tie Rod End?

[subscript]

1983 300D W123
My driver-side tie rod end (outer, by wheel) needs replacement.
FastLane shows 4 parts. 2 part #'s begin with 126, the other 2 with 123.
I'm assuming that I want a # 123. Correct?
Now I can choose a "Left hand thread - short" or "Right hand thread - long"
The # 126 parts show left hand thread for left side, and right hand thread for right side.
So would I be correct to get the left hand threaded 123 part?
Thanks in advance.

Also, I can't access the braingears service manual site. The whole site is 404, not just the filename errors.

--Ed