PLEASE HELP!!! How much is Dekalb Cnty court fees for a trial recorders court for a speeding ticket?

I was pulled over for 85 in a 55, which is considered a super speeder in GA. I ask the office how he knew I was going that fast, he said experience in knowledge because I asked to see the radar and he did not have one. He than began to ask me what I was doing to clean up the oil in the Gulf (I was in military uniform) and ended the conversation with a Happy Birthday. I did report him to internal affairs for unprofessional-ism, nothing came of that. I went to traffic court, the judge did not want to hear it, so I plead not guilty and now I have been subpoenaa to recorders court for a trial. The ticket is 320, I am not sure if I will be tacked on another 250 for the super speeder, I think that comes from the state of GA after I am found guilty. Also I am not sure if there will be an additional fees due to a trial jury. Please help, I know I was speeding, who doesn't in Atlanta, furthermore I do not feel I was going that fast, I understand the pacing, furthermore the officer never stated that he paced, he said experience and knowledge..