My suggestions after camping in our XLR for the last 4 years. Invest in see thru Rubbermaid containers. We use one for sewer hose, fittings, and black tank water hose for flush and one for electrical cords, adapters, and Progressive power management device. A smaller one for fresh water hose and water pressure regulator. Other items needed include wood or plastic pads to level trailer side to side, wood for under tongue to level front to back. Chocks ( black rubber) from Harbor Freight for your trailer wheels.
What are you planning on carrying in the back of your toy hauler?
Jim & Nicky
2012 Forest River XLR 29 MBV
2010 Dodge 2500 Cummings