W124 rebuilt transmission

[91vag]

I have a 1995 E320T in need of a rebuilt transmission. I was planning on pulling the trigger on a rebuilt unit from Sun Valley, but I came across a rebuilt one locally
The seller appears to be a AT rebuilder(maybe I'm assuming?) They list the part number as 722.3 6903803308, which I know is a 722.369, and what I would need for my car.
Curious if there are any specifics that I should ask the seller about what their rebuild process is, or to elaborate on what gaskets, seals, or other soft parts are replaced. They do indicate a rebuilt torque converter.

Thanks