There are many macros on my site that do things like this.... for instance, in your case:
'WORKBOOKS TO 1 SHEET STACKED
Here's a macro for collecting data from all files in a specific folder.The parts of the code that need to be edited are colored to draw your attention.
You'll notice this macro also moves files to an IMPORTED folder in the same folder as the original files... just as you'd mentioned.
The main "tweaks" you have to make are in the "customize this section" portion:
ORIGINAL
You don't need the LR part since you're always taking from the same place. So it would probably change to:
Bookmarks