Hi there. So my dream is to build a garage bump out. However the foundation wall raises 6" upon the garage floor. Ideally I'd like to remove a 16' section of this foundation wall so the new floor in the bump out would be flush with the existing garage floor. I googled around for large concrete saw but the hand held ones (that can cut horizontal) only go to a depth of 5" or so. However this foundation is 7" thick. How would I go about making the horizontal cut (on a budget)?