Think I messed up

There are a lot questions here that will make a big difference in your situation. First CAN the truck tow this trailer? Well that depends on how much weight you add in total including how many people and basically anything you add to the trailer AND the truck also how and where this weight is loaded. So if your total weight is within spec you can tow it but should you? That also depends on several things. Where do you live? Mountains, or the plains? Big city or a dual area? How far do you plan to travel each trip? Nearly every trip we make is over a thousand miles and involves at least one big city and mountains or hilly areas. The biggest factor in determining the final answer is your experience in towing heavily loaded long trailers. I've been towing since I could drive with lots of experience all over the country so I don't have an issue in towing a trailer at its max when set up to do so . The last factor to consider is comfort. I can guarantee you this will be a very uncomfortable set up to tow. You will never be able to relax and enjoy the trip which will hurt the whole RV experience to the point you will either get rid of the TT to get a smaller one that you can tow easier, trade for a bigger truck to tow the TT or just completely get rid of the TT because you just can't enjoy it. Right now in a lot of states regardless of what you have signed you don't own it until you have taken actual possession again depends on the laws in your state. Check with your states AG office for the definitive answer and don't rely on what people THINK is the law.Or consult an attorney for your rights in your situation. I would certainly NOT take possession of the TT until I found out what my legal rights are. Once you take possession you will have to spend a lot of $$$ to correct the situation. ask yourself which do you like more the TT or the truck? If you really like the trailer and plan to use it a lot then switching trucks now may be the best solution . Only plan to use the TT a couple times a year then working out a solution with the RV dealership may be the best option. You have a lot of options now before you actually take delivery. If you only plan a few short trips locally in fairly flat areas and you have substantial towing experience,which I'm doubting, you could make it work but not the idea situation regardless. Correct it NOW or prepare to spend $$$$ later . Good luck