One hint: Don't pull over on the 'shoulder'. Most of those areas are very soft.
The road is wide enough for 2 RVs passing. There's not much traffic so if you're in a safe spot where you feel concerned if you keep driving heading to the other RV or truck, just STOP. Yes, right in the safe road that you're on. No need to pull over.
We've even done that on the other highways in areas of construction. When a fast moving vehicle approaches from the other direction - most likely, a semi, pull over as far as you can safely do so. This will protect your rig from flying rocks. Usually. There is not constant traffic while you're driving these roads so you have plenty of time just to stop and let them pass.