Custom Hard-Side Camper Blueprints

I’m planning a hard-side, slide-in truck bed camper and want a complete design package before I start cutting metal. The layout has to include a comfortable sleeping area and a compact but functional kitchenette, all framed primarily in aluminum to keep weight down and durability high... (Budget: $250 - $750 USD, Jobs: 2D Drafting, 3D Animation, 3D CAD, 3D Modelling, 3D Rendering, AutoCAD, Fusion 360, Solidworks)