ok.. i figured out a workaround that i'll post here in case anyone else ever comes across such a need.
the problem is, when trying to navigate to app/contents with automator's "move finder items", the actual apps are greyed out and you can't dig into them..
what i did was-- using finder, navigate to the desired folder within app/contents then drag it to the sidebar.. now, when you use automator's "move finder items", you can just click on the folder in the sidebar and the correct path will be chosen.