Hi all! I'm new to pop up portal. We have had our pup for going on 3 years now. Bought it new from Cheyenne camping center. It's a Forest River Palomino ORV-2 Basecamp 2015. We want to install an a/c unit with heat strip on it before we start camping this year. I've gotten a lot of mixed info. I have some questions. 1. How do we know if it is pre-wired for an a/c unit? 2. How do we find the roof brace? 3. Do we remove the exhaust fan ("Fantastic Fan") and place the a/c unit in it's place or cut a new hole? 4. If we cut a new hold how do we know where to put it? 5. We are looking at Dometic and Coleman units. Any recommendations?