We don't usually tend to recommend a 2500cc implants to patients. 2500cc weighs around 5k liters which is a big weight to be carrying around and can cause severe back and neck pain which will affect your posture. Your breast tissue is also likely to be extremely stretched which will distort your breast shape and in the majority of cases patients are unable to even accommodate such a large implant safely.
I have specialized in XL breast implants for many years. I have a special arrangement with a couple of breast tissue expander companies as well as custom XL silicone manufacturer and have offices in California/Miami/Nassau/ANGUILLA AND ITALY. Some of my patients have gone well beyond the size that you wish to be! They say that they are happy with them! I woiuld suggest you visit my website specifically for XL patients below.I am available for FACETIME/SKYPE/Whatsup video consultations.