Is ileostomy and Barbie butt surgery too much at once

My sister is having surgery to have an ileostomy and she is wondering if she should do the Barbie butt surgery at the same time to just get it over with. I’m trying to help her research things. Has anyone out there done both these surgeries at once? Would love to hear from you. Was it the right choice for you? Any regrets. Please share your advice. Very much appreciate it!