And why on earth would a higher lsat score lead to a better job? Just curious what put this inane idea in your head.
Focus your energy on law school. A good gpa/rank will lead to job and transfer opportunities, not your lsat score. Oh, and don't put your lsat on your resume after you start school. No one cares unless you got a 180, and since you're asking about retaking, I don't think that applies here.