Driving Precautions with Stripped Down Class C Shell

Question: If one drives a completely stripped down (imagine what a cargo van looks like new) Class C RV (ie. Toyota Dolphin/Sunrader) across country [for the purpose of getting it to its renovation build site] would speed of travel or cross winds or anything else likely be an issue **solely in relation to there not being interior walls or anything else to offer weight or ancillary support/stability**?

Or would one almost necessarily need to add internal bracing and weight?

Thank you, so much, for any advice you may wish to offer.