You need to be more specific about your location, if you are a secret agent under cover you could use the AMA turbine waiver list to see if anyone is close to your area. My advice is to do your homework and look around at the different turbine manufacturers, for a beginner I recommend you stay away from used stuff. It is a big blow to a new person to have to buy something twice when you are just starting out. Get a new turbine in a size that fits the air frame sizes you are interested in and that fits your budget, if you have one. I recommend you start with some kind of turbine trainer, I know some started with a twin A-10 but I still say get a trainer until you become familiar with the operation of turbines and you are comfortable. Good luck!
Luke