A couple years ago I bought an 18-27 out of the Oliver Museum in Iowa.  It is restored from front to back and top to bottom.  Nothing was missed when restoring the tractor.  I paid a lot for it and then stuck a lot it in on some other things I thought it needed.  It is the nicest 18-27 you will ever find.  I would like 20000 OBO.  I am open to your offers.