One point worth noting......YES, a wheel alignment under full load, gas, water, gear, weight to simulate people.
BUT, on my old RV, I had excellent alignment. On one trip crossing the great plains, there was a very strong steady cross wind for the entire journey. I had to hold the steering wheel off center to compensate for that 1000 miles. That ruined both front tires. One wore bad on the inside, and the other wore bad on the outside, evidence of extended use of steering compensation.
Just keep that in-mind.