OK, for number 13 you are talking about that stick, or whatever it is. There are two of them, and the one on the left (between Perry and Jimmy) is slightly larger (and/or longer) after modified.

This
[Linked Image]
is it.

EDIT: Looked a little bit harder, and also the larger images, and noticed that the first step (top) of the stepladder is longer on the modified (sticking to the right). Would that be #14?
malu