IN my last post I failed to add:
You also need to consider buying a weight distribution hitch for the trailer and a proportional brake controller for your tow vehicle.
The weight distribution hitch will help equalize tow the loads into your vehicle and the brake controller will help by applying the trailer brakes for the trailer to match how the brakes are applied in the tow vehicle.
When we first bought our KZ we didn't get either and immediately realized that we needed both to tow safely.
I attach here (I hope) a 2007 trailing guide from Trailer Life magazine