Tony, if you check page 1 of the "Audition" thread in the "Hearing Things" forum, that is the place where we discuss auditions. Page 1 has a list of people willing to do auditions. However, sometimes the list is not updated, so then you can send Amie or Andrea a PM at Axiom. Or, start a new thread asking for an audition. Most likely someone will respond to this thread, since our community is small and everyone reads every thread.
Also, I know there are some m80 owners in FL. If you can't find an m60 owner, I would recommend at least listening to the m80's. They two models have very similar qualities and this will give you a good idea of how the 60's will sound like.
I owned 60's for 2 years, and now have upgraded to 80's. They are very similar in high's and midrange, with the 80's having a bit more detail as to the dual tweeters and midrange. For the low bass categories, they are again very similar. The 80's put out a little better in this category as well, I believe because of the slightly larger footprint. However, most people would not tell the difference.
Good luck. I will say the quality of the finish of the vinyl wrapped, wood veneer, and custom colors are top notch, whatever you decide you will be happy I'm sure.