i would try and lose the weight first try and be around you ideal weight before surgery, i was around 15lbs overweight before my surgery, i planned on losing it, but no matter what i do i cant lose it i actually gained an additional 12lbs since my
tummy tuck, but 40lbs sounds like a lot,
tummy tucks are meant to make your belly tight and they are expensive and painful i dont thinkyou would want to do it twice