When asked how tall a man should be, an answer famously attributed to Abraham Lincoln was "a man should be tall enough so that his feet touch the ground". So what is a good total for you, particularly for a first meet? Completed lifts in all 3 lifts. And then try to improve for next time. What you will find, particularly at ADAU meets, are a friendly, supportive group, who will cheer you on, give you some help and advice if you want it, and hopefully help you to catch the powerlifting "bug".
If you want to look at the records, they are available on the web page. But this sport is very much about individual achievement and improvement. A definitiely encourage you to give it a try.