I hesitated to even answer this.... You have been given the answer over and over in your other thread... For some reason you arte asking it again... Leads me to believe that you will keep asking until somebody tells you it's OK.
Someone eventually will. Then you will believe them and go on your way.
The ONLY reason I am bothering with this, is that you mentioned bringing the grandkids along. So for their sake, here it is again:
The F150 can be had in many different versions. Some have payloads of over 2000#. Many do not. They all look the same going down the road or parked on the dealer lot. But they are different.
You have also mentioned going to a bigger TT. It is time to get a bigger truck. The HD trucks today are very nice. You wanted heated seats, it can be done, even a heated steering wheel. You can even get the seats cooled in the summer.
Driving wise isn't much different. A firmer ride (a good thing) So rather that grasping at desperate, dangerous methods such as lightening a the TW, get a bigger truck, then take those grandkids camping:B