This will be an interesting project... let us know as it goes on. From a losing weight point of view it will come down to energy burned versus calories intake. You will need enought calories to keep you going but not too many..... you might consider intense weight training three times a week with only light weights (your body might like this change and it's only for 30 days)..... burn more calories and should "get ripped" in the process. Alternate biking and running possibility.
-Do It!