Deena, to me it would depend on whether you require it. Chances are you really won't be requiring it because you have it.
Now, look at it this way. John Doe lender makes the first and you are making a second. You will require an appraisal. If you accept an assignment of the appraisal done for the first, you will show the cost (these are what I call "ghost" costs).
I don't require every single little thing to necessarily be shown...but if it's required, then we expect it to be shown...ghost, real, or anything in between!