It seems to me that you're looking at some very substantial changes that need to be made here. Online MTM is extremely tricky, especially for a suit. Your best bet might be to find yourself a reputable MTM shop nearby, and have them take measurements and produce a suit for you. While it might cost more, it will be money well spent as compared to several iterations (and likely several ill-fitting suits) until you finally "get it right." I agree- this suit is so bad you are unlikely to achieve a decent fit after describing your changes in a email or on the phone.