karebear. The windshield cover came from Camping World. About $40 as I recall. I have found, when traveling in Hot weather, if we install the outside cover immediately after parking while I hook up, it helps tremendously with the solar burden inside as most of the heat and UV are reflected away from the interior as opposed to putting up the inside screen which allows all that energy to get through the glass first and turn the dash into a heating panel. Works for us, worth every cent it cost. Quick to install and quick to fold up when taking it off. Trick is to fold and unfold on the windshield, then it is relatively easy to handle. Of course when it is cool or cold outside, I use the inside cover only, and let the solar in to help heat the interior during the day. I originally bought the cover for use in storage only but I learned with my Roadtrek, last year that it worked really well to help the AC keep things cool. Don't forget, that when you first stop on a hot day there is going to be a lot of heatsoak from the exhaust system and undercarriage. It will be harder to cool for the first few hours till that stabilizes, mind your top AC should be able to handle it fine. Our friends with Diesel pushers know all about heat soak, from their engines being in the back under the bed. Works great in the Winter, but really heats things up in the rear when temps are in the 100's as they are here today. Good luck and don't be concerned if there are a few problems along the way. Everyone of us has had to fix or improvise as we wen't along at one point or another.
One last tip before you go. I see it has been unseasonably HOT in WA and OR. If for some reason you are going along fine and your Ford seems to run out of power, then grinds to a halt, don't Freak out. Ford uses an intank fuel pump and in high heat conditions they have been known to quit because they are always circulating fuel from the fuel rail back to the tank which heats up the fuel in the tank. Fuel in the tank cools the fuel pump as it works. Ford USED to have a problem with fuel pumps stopping unexpectedly in VERY HI heat conditions such as you would find on blacktop roads above 100 degrees. Not a great problem, annoying at best because it will start working again when it cools down. 2 things to consider, try not running on hot days with less than 1/2 tank of fuel because your generator will stop running at 1/4 tank and the greater amount of fuel will stay cooler longer. If you did have to stop going due to this problem, pull safely off the road, wait a few minutes and re-start. Then drive as quickly as possible to the nearest gas station and fill up the tank with fuel which is of course cooler from being in the ground. Tank heat goes down, pump works fine and you are on your way again. I speak to this from personal experience on two of my Ford chassis, it only happened in very HI heat conditions and after the first time I knew what to do. No problemo.