Can I safely get arm lift, breast lift/augmentation and 360lipo/tummy tuck at one time?

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation. I frequently combine multiple procedures into one surgical setting.  Safety must always be the number one priority.  In my practice, I would recommend separating these into two separate surgical settings, separated by three months.  This will help to optimize your results and safety.   Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results.   The most
important aspect is to find a surgeon you are comfortable with. I recommend
that you seek consultation with a qualified board-certified plastic surgeon who
can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

You would need to be examined and your medical records reviewed by a board certified plastic surgeon to determine your candidacy for having all procedures completed during one surgery lasting no more than 6 hours.  Select a board certified plastic surgeon who is an expert in all three procedures Kenneth Hughes, MD, Board Certified Plastic SurgeonLos Angeles, CA

Thank you for the question. Generally speaking, combination surgical procedures are done routinely. However, you are wise in being concerned about the safety of combination surgery; risks/possible complications do increase with increased length of surgery… In my opinion, the combination procedures you are considering would be too much to perform in  a single session.  
It is best to evaluate each patient's suitability for combination surgery on an individualized basis. During this consultation process, after a complete history and physical, the SAFETY of combining these surgical procedures becomes of paramount importance. Plastic surgeon, anesthesia provider, duration of surgery, surgery facility all important considerations.
Your best bet: choose your plastic surgeon very carefully; everything else including good judgment/advice/planning, anesthesia provider and safe surgery facility will follow.  Always keep priorities (safety,  avoidance of complications, and quality of outcome) in mind as you make your decisions.  Best wishes.