One quote left (Barks quiz - Twelve quotes of Christmas)

[Daniel van Eijmeren]

A HAPPY 2004 TO EVERYONE!

Here is the remaining last quote of the Barks Christmas Quote Quiz, 
including some hints:

6. "Here is the deed - all filled out! Sign it on the dotted line!"

Hints: Ten-pager. No Scrooge involved. Deed is obviously shown. 
Takes place during Christmas.

Another quote from the same story: 
"Somebody's at the door, Unca' Donald!" / "We'll go see who it is!"

Maybe I've already given the answer away by now. I find it terribly 
difficult to hint at this story without giving it away, because it's 
one of the better known Barks stories. I'm surprised that this seems 
to be most difficult quote of the twelve. And I bet you will be 
surprised, too, after finally having discovered the answer. :-)

--- Daniël