This is just a thought I had after seeing both items for sale and just for discussion want to know if it's possible or even practical.
No, it isn't. Look at the extension of the edge along the body on a Tele-Rollei body. They added maybe 5mm, the rim with a leatherette covering. There must also be other ways that they make up the 55mm focal length difference, maybe mounting the shutter behind the center of the lens? The focus rails need to be a different orientation, as does the lens board and its attachment to the focus rails.
And then just for fun, they use a bellows for the taking lens light trap. But it isn't the same as the 2.8C bellows; it has a different travel distance so is a different basic size.
About the best you could hope for is that you would get focus at infinity and maybe in to 100 yards on a standard 80mm body. No way to extend the lens for much closer focusing. And this assumes that other things would work like the shutter and aperture dials. If hacking lenses was in any way reasonable on Rolleiflexes, people would have done it long ago. There were many users, many professionals and with either skills or access to skills to make the kind of changes you are talking about. Yet I've never heard of it.
That Sonnar is a great lens. You want to use it, buy a Tele-Rollei. Or a 6x9 technical camera, a #0 shutter, lens board, and 6x6 graflex back.