You don't have to limit your search to a unit with A/C. Ours doesn't have any but the trailer is wired for one. All the relatively new trailers are pre-wired so adding one later is very easy. If you find a trailer you like, even without A/C, you can always add one. The benefit is you'll be starting with a new unit. You could probably negotiate the price based on it not having an A/C.