Can I do a bbl, tummy tuck and ribxcar surgery at the same time?

I had a BBL a year ago, but alll the fat is gone, even though I workout and eat right. I was told that after 6 months the fat was going to be permanent unless of course I lose weight which I did not. I started loosing a lot of volume after 8 months post op, and have continued to do every week, I feel like I have lost like 90% of the fat. Would you reccommend a second round (I would probably gain some weight)? A have a little of loose skin and a second lipo will give me more loose skin, so is it a good idea to do it together? The BBl, TT and ribxcar (rib remodeling)?