Design a Durable Portable Ramp

I need a portable ramp designed for elderly access in public places and home uses . The ramp should be lightweight yet durable, made of carbon material or stainless steel for its lightweightness. Key... (Budget: ₹1500 - ₹12500 INR, Jobs: Accessibility, CAD / SolidWorks, CAD/CAM, Construction Engineering, Materials Engineering, Mechanical Engineering, Product Design, Safety Consulting, Solidworks, Structural Engineering)