I did a bit of research today. The more experienced folks with which I spoke advised me the edges of the Trinity are not too hospitable towards campers. High walls, thick trees, private property and apparently as much variation in scenery as the mars rover would see in its eight-month transit.
So...perhaps the Brazos River to the West would be better. It has more water flow, sand banks to camp on, better scenery and smoother water. Well...hell, I made up the part about "smoother water" but I have to say something to justify the extra expense of traveling further out West to go paddling.
That's a lie, too. I will be thrilled to head out a bit further for this excursion and the exit point just happens to be Granbury, home of a wonderful Mom'n'Pop-style Italian restaurant and a fantastic gourmet cooking utensil shop as well.