Converting my dully to a 10 wheel drive to handle Toyhauler

With your ability and knowledge, a custom built wind deflector from above the windshield to the top of the sleeper would soften the front and could give you tons of enclosed storage for clothes and other personal items.

Yes, a custom built flatbed with storage would make the rear look more in tune with the box shaped front end and again, give you some much needed storage for camping supplies and tools.