I'm moving from class C to fifth wheel. Buying a F350 SRW 8'box diesel. Have test driven the DRW and do not want to drive it as my daily. But Montana 3402RL is my preferred FW. Its 12901 dry w 2635 pin wt and 39'2". I'm suspect that would require a DRW. The Mountaineer 362RLQ is similar...