Buyer's remorse??

We almost pulled the trigger on a very similar trailer just this past weekend. I always like to wait 48 hours to cool off before committing and I'm glad I did. Excitement gave way to reality and I realized that by the numbers, our Expedition would in fact tow the camper even though I would be over on payload, making my truck over-work and be overloaded which is a safety issue that I'm not willing to bet my life or my familys life on. Conditions can change rapidly from beautiful to windy rainy weather. Can an over-loaded rig handle evasive maneuvers in bad conditions? My family is my world. I cancelled the order.