Wynn operator replacement

Hi - I am assisting my dad in finding a reasonably priced window operator. He previously got replacement window operators from the company that installed it (it cost over $30 per operator), but it is getting too costly. We don't know what the original window operator brand is, but I have an inkling that it is a Barton Kramer TM Awning Window Operator #207 or #208. According to Barton Kramer's website and the specs listed there, the holes are the correct distance apart, as well as the arm is also "bent". The only difference is that we have white window operators, and Barton Kramer has Silver or Bronze.

Right now, we just want to replace a Left Hand window operator. If it's white - GREAT. If not, we'll take what we can get.

Do you know if your Keller Window Crank is similar to the Barton Kramer TM Awning Window Operator? I am unable to attach photos to this post, but could email you the photos.

Attaching photos!