We had a 20, now a 25. No significant difference from what you learned about your 23 FC. If utmost safety of this precious cargo is your goal, get her a tandem axle Airstream like yours.
That way if she has a flat tire on the drivers side of her Airstream on the interstate highway, rather than of changing the tire within a few feet of speeding trucks and cars, she can drive on at reduced speed to a safer place. And even then, she can just take off the flat tire with a tire ramp under the other tire (no jacking), and proceed to a service station on the three good tires.
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles
The Truth is More Important Than the Facts