Congrats on the weight loss.The best strategy is to:-do the BA and BL at the same time as you have your tummy tuck-hard to tell what sort of tummy tuck...but you may need a full circumferential-undergo surgery once you have reached your stable weight and maintained it for atleast 6months.This ensures the best long term results.
I hope this helps and good luck.

Hi Maine81. Thank you for posting your question and photos.
Well done on the weight loss. Unfortunately a common consequence of significant weight loss is loose skin. You should reach your goal weight first and be stable in weight before undergoing any form of body contouring surgery. 
If you are relatively happy with the volume of your breast currently but just don't like the shape/droop, you may suffice with a breast lift alone. However, if you wish to increase in breast size, then an implant with a lift will be required. In terms of your lower body, it's difficult to ascertain how much laxity exists posteriorly (on your back). You will get a an improvement with either an abdominoplasty alone or a lower body lift (belt/circumferential lipectomy). Very occasionally, a circumferential resection is performed in two stages. There are pros and cons of each option, and you should discuss these with a specialist plastic surgeon.
All the very best.
Dr Ray GohValley Plastic Surgery