Don't expect huge gains from tzone solo but you should get some decent hardness and strength gains.
Unless you're Gino prone then you probably won't need a AI but a keep it on hand or make sure you can go pick one up quick if you need to.
Use a real pct as tzone will suppress you. I recommend clomid @ standard dosage.
If I were you I'd look into Epistane or hdrol, or maybe even mechabol.