Look for small dual axle TT, no more than 25ft

Skycrath wrote:
I'm working with a Chevy dealer to ensure that the 1500 I choose to purchase is capable of towing 30ft trailer.

One would think this a reasonable idea BUT you want to remember that very few vehicle dealers actually know ANYTHING about towing, even if they claim they do. You really need to do your own homework and not rely on any dealer. It's a lesson learned the hard way by many before you. ;)