I just want to let you know that I recently turned down a job for Kaplan, and I would have been potentially tutoring you. I scored 168 in June (although PTing 173-175), which is technically below the range you're at now.
I do private tutoring for $50/hr, and I do think someone in your position could stand to benefit from private tutoring, but I highly recommend searching for reputable, affordable tutor that you can pay on an hour-by-hour basis rather than committing to 15 hours with a tutor you may or may not like and who may or may not (probably not) have scored better than you.
In all honesty though, at the range you're scoring in, your best bet would be to find a reliable study partner scoring in your range rather than pay for a tutor who will be of similar benefit.
If you absolutely must have a tutor in addition to a study partner (which you can find in droves here on TLS), I recommend getting one of the many 177+ scorers who frequent the boards.
I did a tutoring session with Larkin Robson (NYCLSATTutor on TLS) and think he would benefit you: http://180degreeslsat.com/
I also recommend Matt Shinners (bp shinners), Jeff Moenter (jeffort), Dave Hall or Steve Schwartz (LSATBlog) who I believe all still do private tutoring as well. If you search around you can find several others who will give you some great bang for your buck.