Do I need a breast lift + breast augmentation? (Photo)

A larger implant will accelerate the rate of sagging. So, you may be happy with your results shortly after surgery but with time, you may find that the sagging is exacerbated.

Thanks for your question.
I would encourage you to pick the implant size and determine if you need a lift when you're at your ideal weight. If that first photo is from when you're at 110, it doesn't appear you need a lift. But if your skin doesn't retract as you get back to that weight you might still benefit from a lift.
Given the implant size goals and your potential propensity to stretch I'd likely recommend an internal bra supporting matrix to provide more longevity.
I hope that's helpful!