I might look into the cargo net idea in the future if needed. At 7.5 lbs, I'll need something that goes all the way to the mattress edge if I need to do this in the future. For my first adventure this Wednesday, I'll deploy the bed slide.
All my dogs are use to sleeping on the bed, so a crate wouldn't work. Her crying all night would keep me up. I am planning on bringing her crate for when I need to leave her in the RV by herself.