The R404 base model package is upgradable and customized packages. Upgrade packages include 220 RV plug-in, Roof Solar System, and an outdoor Wood Burning Fire stove, Spiral Roof-Top Stairway, Green Garden Roof Top System, Japanese Wood Cladding, and floating glass flooring. Clients can customize packages to fit their needs with ample accessories from furniture, appliances, and fixtures. Shipping times and costs are subject to change.