interested in getting custom butt implants (600+cc) bc I will have to gain 15lbs for a bbl and I can't maintain the weight (esp when u start working out again. I just had a baby)Which means the bbl would go to waste. I do have some areas I want to lipo (abs/flanks/inner thighs/back) to transfer around the implant so it won't show. Wondering about how much custom implants cost? In the event I can't get custom implants, what is the biggest size and shape I should get? Stats: 5'4, 129lbs, 30yrs old