There are suggestions threads in the recruitment forum about getting recs -- you probably know members you didn't even realize, like teachers!
I would avoid the purple hair, until after recruitment.
One of my alumnae sisters -- who is in her 60's, always has her hair dyed pink, purple, or magenta. And a few of my daughter's sorority sisters like to do this, too. I just wouldn't do it during recruitment at an SEC school, where people will probably be more conservative during recruitment.