Welcome to the forum. Sounds like your trailer sales person was not to informative. He should have told you all about what you need. Based on the numbers you provided I say you are in the zone for towing, but just barely. I will tell you you may want to also add rear tow vehicle air bag assist. You do have a brake controller? You will need one. I suggest you take the rig to a qualified shop and have them show you how to set it all up correctly then go for a short trip . There is alot of experience on this very helpful forum. Keep asking questions.