I asked around for a private tester and one was recommended. She is good, but pretty clueless after the 130 mark. She hadn't heard of Ruf's levels or had experience with children who tested really high. She did give DD breaks and a reward at the end, which made for a happy day.
Our county/public tester was wonderful. I was pretty clueless at the time, so I got lucky. She called first to speak with me, find out about what time of day was good for my DD, etc., and then called me when it was over to tell me that it went well.
If I had to do it again, I would ask around even more to see what people's experiences have been. I would think that in a city without a big gifted school situation, a call to the local gifted organization (state organization) or ask Mensa participants would be helpful, yes?