2006 Class A Gas 33' Ford Thinking of Purchasing

You won't have a problem. We have a 33 ft also (see my sig below) and tow a 4800 lb loaded horse trailer. The slowest we've ever been was 45 mph. We live at 2500 ft and have to cross 4000 ft to get out of our valley (that's the normal route, the other two routes are 5000 ft). We have a fairly long hill to pull when coming home and get no lower than 45 mph in one area of the climb.