You might want to consider joining EAA 309, the Charlotte, NC chapter of the EAA. They have a late-model DynaVibe prop balancer available for member use. I have never used it, but my understanding is that it is quite easy to use and does a remarkably nice job.
Also, I?m not sure, but I think the DynaVibe is usually kept in a hangar at the Lake Norman Airpark, just down the road from your neck of the woods (Catawba)