Yes, you would be a good candidate for a dual plane breast augmentation. You have glandular ptosis (Mild breast sagging), but this should not interfere with your surgery. If you didn't mind scars and wanted a slight uplift, a peri areolar mastopexy could also be performed.
Dual plane technic is not difficult and it just adds a maneuver to a submuscular breast augmentation. It’s used to provide added expansion of the lower pole of the breast for a more natural look. Of course, consult with a board certified surgeon.I hope this helps, good luck !