answer:I’m on day 9 of integrating a new cat and it’s going great, but, he is older and very mellow. I’d keep him confined for the first 2 weeks or so with daily walking around the general area of the house and RV, and with a window he can look out of the rest of the time. Is there a divider or sliding door to a bedroom in the RV? Keep him and the female separated the first few days and let them get used to each others scent. I tend to put them together fairly quickly, within about 4 days or so and let them work it out. My vet has the same mindset and I respect his opinion. It has always worked out just fine except for trying to introduce a stray female to my 2 yr. old female last summer. That was not going to be a blend at all. I’m sure within 10 days or so he will be acclimated enough to go out for brief, supervised excursions, and then, it is unlikely he will run off knowing you and the routine. Let us know how it goes! I JUST, tonight, moved my new guys litter box into my garage with my other cats, sooo, it is his first night of going out the kitty door to use the bathroom. I am confident he’ll be just fine. Yay..no more litter box in the bathroom! Mission almost complete.