And then there are the easy ones.....maybe yours is, too. My big orange tabby male, whom I got as a tiny kitty from the shelter, had never been outside the home until 8 years old. His mom decides to be a nomad and puts him in a van and goes on. He has never complained. Just for a while was observant and hesitant to go outside the van sometimes. Took to a leash and collar immediately. Now he loves to explore. Mind you, he is attached to a collar and leash, and me. Or secured to a post I am observing.
p.s. $1.00 leash and $1.00 collar from Dollar Tree work fine. You need a breakaway collar for most times inside and a regular collar to attach to leash, while you are watching. If you want more slack for kitty, just attach $1.00 leashes to each other for more length. (I have tried all kinds of harnesses, including a $30 "escape proof". Yeah. Didn't work even 1 minute.) Try the cheap collar and leash. He takes me for walks. We have since been in too many states and miles to count. I just need to put his collar and leash on and we go. Don't leave kitty outside alone, though, especially where there may be coyotes or even hawks who will swoop in. I am always with my kitty.
And please make sure you have a hard-sided crate that you can easily handle and transport, with a comfortable pillow or something, for comfort, transport and emergencies.
While traveling, my cat stays under the driver's seat, his choice. I tell him that he is so smart to do this, as he won't get hit by the stuff falling down as we go along.
He does not need to be crated while traveling, although some may need that. Have fun with your new kitty!
If you have any questions, please ask.