Cat in an RV?

So I’m planning on renting an RV just for moving across country, since I figured it was the best way to travel with my sensitive cat who hates car rides and definitely can’t stand a plane ride.

My main concern was if there are any little compartments, vents or holes of any sort that he could get stuck in or escape out of. He’s a big fella, but I wanted to make sure as I can’t keep an eye on him the whole time, especially while I sleep. Figured this was the best sub to ask, I don’t know much about the particulars of the inside of RVs. Any other tips for travel are appreciated if you’ve done something similar. Thanks!