Yes The Master Cleanse without the maple syrup is a fantastic solution. Although, because you do not put the syrup in, you do not get essential nutrients, so it is advisable to eat a soup in the evening (hence it was not exactly cheating on your part to have the soup and juice, with the maple syrup, you would not feel hungry at all) and some cereal in the morning.
The diet is essential, but not enough. You need to cleanse your system, the spicy lemonade will be highly helpful.
No need for laxative or purge, unless you ar not regular.
You are definitely on the right track, just carry on.