I'm sure that you are familiar with the many opinions from people on and of the forum that you may receieve.
My best suggestion would be for you to go to the Rules page and go to the Rules defined and after reading the classes that you think that you may be elligable for you choose one that suits you. You may want to change your equipment in some way to conform to one of the classes you will read about, or you may fit in one or more of the classes listed.
Good luck and remember HAVE FUN.