I have a 31E. Try deflectors in the windows(windshield,driver/passenger). I also just added a backed curtain across the cab to block the cab. This area is a huge source of heat. When I'm in Florida I also put a cover on the outside over the front windshield. Your AC should have and air dump feature which allows more air out faster. We use it during initial cool down and when we are in an out the door. We also added the foam blocks to every over head vent, and have a clip on fan we use to pull heat from the bedroom out to the front. Don't forget your in Florida, heat is one factor, humidity is another. I'm sure the condensate is pouring off you roof. You may also want to play with opening and closing vent to get the air where you need it.
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