In theory, you can use your EQ to boost the guitar parts and reduce the level of the others. I have Guitar & Drum trainer, which sounds similar to Song Surgeon recently offered in the sign up deal here. It's a bit cheaper if you wanted to try it. (I think around $50.)

It has a 62 band EQ, so you could almost certainly isolate the guitar tracks you want.

http://renegademinds.com/