I'm going to suggest finding out what these trailers actually weigh (somebody here on the Forum has got to own examples of these) in order to answer your questions. With these TT's loaded and ready to travel they will be closer to the GVW than to the dry weight (dry weights are polite fiction). Second, those tongue weights seem to me to be very low. Tongue weights generally should come in at 12-15% of the weight of the trailer for best road manners. JMHO
Our Coachmen is 15 years old and still going strong because it is maintained. If these units you are considering were well-maintained you should be in good shape. Northwood is one of the better builders out there. Good luck.
