You will be "safe" but the weight of that trailer is right on the edge of what most people would find COMFORTABLE to tow with an F150.
The trailer will certainly weigh over 8000lbs loaded and ready to camp. The truck will tow it fine and handle it fine, but the truck will feel "heavy" and you will be downshifting and running the engine at 3000-4000 RPM on hills. You may not even be able to hold overdrive on the flats.
None of this is "dangerous" to you, your passenger(s), or the truck itself, as long as you properly maintain your truck. However, you may find it tiring on long trips depending on your personality. Patient easygoing types will not mind, and will slow down and enjoy the trip. Others may be tearing their hair out every time the truck downshifts.
