Thanks again for responding to my issue. We will definitely have them take care of it before the close of escrow.
If you want the house, you might check to see what a reasonable discount would be to compensate. Depending on the connection at the wall, this might be just a matter of cutting a hole, and using some slip (not glue) couplings.
I would post a side view of the connection at the wall, and somebody might be able to estimate how easy/hard it would be to make the change. You want this kind of view:
Yes, there will be a hole in the bottom of the cabinet. Is that area below hidden? When cutting, while it is unlikely there is something under there to damage, start slowly enough to check.