I'm looking for a 3D model of a farmyard shed using Onshape software for 3D printing. This is for my son's school project. Requirements: - Dimensions: Length not to exceed 450mm, Width not to exceed 550mm (sketch will be provided) - Features: Doors and ventilation openings - Interior: Basic structure with some partitions - Roof: Sloped design Ideal skills: - Proficiency in Onshape - 3D modeling experience - Attention to detail and ability to follow provided sketches