Smyers, that route looks really good, far better than the effort I made a few years ago.
My method to find out what items are not on the DLS is as follows:
Right click on your route and select List Dependencies
In the new window select all, right click and select Export to CDP. This will create a backup of those dependencies. Do not wory about built-in items being in that list; Content Manager just ignores them in making the CDP
Now you have your backup, select all again and delete. Again CM will ignore the built-in items.
You should now have a list with three types of object; built-in, available for download and unknown asset. Click on the status heading and all the unknown assets should be at the top of the list.
Select these and copy (CTRL+C) then paste into something like Notepad You now have a list of the unknown KUIDs.
Close that window and reinstall the CDP and you should be back where you started and all should be OK.
Now comes the tedious bit of finding what the unknown assets are and where they came from. Hopefully you will not have too long a list.
I hope this helps