I don't know how much Rolleicords are going for these days but you may also want to look at the Zeiss Ikoflex with a Tessar lens.
I have owned 2.8 and 3.5 Rolleis, both Planar and Xenotar. They are good lenses no doubt. These days I find something attractive about the Ikoflex I have. Nice and simple and light. The Opton Tessar is more than good enough.
You can talk about the qualities of the lenses ad nauseum but if you go out and take a good image no one will care what you used. That may not be a popular thing to say on a photo forum but it is the truth.