With a regular diet in the US, most patients do not need a supplement or boost before surgery.
Some of the supplements you list are known in homeopathy circles to possibly reduce pain and swelling. The plastic surgery litereture is less clear, so it's probably OK to take echnincea/ arnica/ bromelain/ other things, but it's questionable whether these supplements help that much. They are probably OK in moderate doses.
I usually recommend making sure you have a good diet or taking vitamins AFTER surgery. Your body can't store many vitamins and minerals, and you will probably not be able to eat normally right after surgery, so vitamins and minerals can help your depleted stores right after your Mommy Makeover.
Also, i usually recommend that you make sure to eat plenty of protein, or even more than normal, after surgery. Your body is in a "catabolic" state after your Mommy Makeover, so your body may need extra protein to heal. The normal US diet has plenty of protein, but again, after a Mommy Makeover, you may not be eating normal amounts of food.
I usually direct my patients toward healthier food sources of protein, such as beans, quinoa, and other veggies if you're a vegetarian. If you're an omnivore, than wild fish, organic or grass fed red meat, and other healthier sources are my recommendations.