Is it good enough?

You must have been confused in your first post, I just went back and re-read it. You were telling us the PIN weight was almost 5,000 pounds. Most huge fifth wheels only have about 3,500 pounds of pin weight, maybe that's where you got confused. Either way, that tacoma was built to haul a couple of dirt bikes or a small utility trailer with some firewood, not a large trailer of any kind at all. The trailer probably weighs 5k empty, but after you add water, spare tire, all your food, camping gear, all your clothing, bedding, etc. you'll add a few thousand pounds in no time. Generators aren't included in the information on that sticker inside, either. Half ton would probably struggle with it too, you need a minimum 3/4 ton pickup to be safe, even driving a few miles. We all see way overloaded 1/2 tons almost daily. Fact is, the 3/4 ton pickup is what you need. It is built to tow, where the half tons and mini trucks like the tacoma are not nearly heavy enough frame, axle, brakes or engine wise. Eventually you'll want to drag that trailer a few hundred miles, so just get the right truck in the first place.