Michael, if you hit it at the perfect timing, with an ATV, with trajectory, AND maintain lock, you could do some good. How long is this road? In fact, I'd suggest you try both. Get those specific shots. Then, compare it.
The gps system was originally designed for trajectory. (Missles!) It's a DoD program. Actually, it works better while in motion, than sitting still.if If/when you loose lock, stop, and wait to regain. Then continue. I'm not saying to only do this. I'm saying do both. In fact, run trajectory 2x or 3x. You won't waste much time, and you will get a greater grasp at what this does.
Please keep in mind, GPS can never completely duplicate a shot. Because the constellations are always in motion. But, it can be close. Close enough.
Again, how long is this project?
By doing both, you will gain a sense of the whole thing. You will see places you really want/need specific shots. And, where trajectory is adequate.
In the iffy places, run 2x, 2 directions.
It's hard to explain, but if you are going 5 mph, drive under a tree, loose lock, drive on past tree, regain lock, and continue, and then repeat, in opposite direction, it'll do alot.
Nate