For Sale: 5th Wheels / Concord, Nc Why Purchase From Us - Click Here! This Is A Preowned Used 2009 Keystone Montana Big Sky 365req Fifth Wheel That Features 4 Slide Outs With Toppers Giving It An Open Floor Plan. It Offers All The Comforts Of Home 50amp Power Supply, City Water Hook Up, A/c And A Refer, Stovetop Oven, Microwave, Tv, Fireplace, Sofa, Table With Four Chairs, Queen Bed And Bath.