For Sale: This Is A Keystone Montana 2850rk Used Fifth Wheel For Sale. This Keystone Rv For Sale Has A Rear Kitchen With Plenty Of Counter Space And Storage Along With A Free Standing Dinette And 4 Chairs. The Mid Living Room Has A Nice Sofa In The Slide Out Room A 5th Wheels / Corpus Christi, Tx This Keystone Montana Fifth Wheel For Sale Is A 1999 Model 2850rk. See It Today At The Ron Hoover Rv& Marine Location In Corpus Christi And We Are A Short Drive From Robstown Or Victoria Texas.