Okay, I re-read the post again, and just to prevent confusion with the status quo here, we follow the Stanley Burroughs version of the cleanse, as it is in the book and it does not include drinking broth during the cleanse. It is Espen H.'s experience which obviously included deviations...and that makes a difference...
I am sure there are many who segue between juice fasting and doing the Master-Cleanse but if you are wanting to give your digestive system a rest, the Burroughs recipe would be the one I recommend.
Here are some links to the ebook of The Master Cleanse book by Burroughs and you would be hard pressed to find in there where he recommends including broth in his version of the cleanse.