Traditional Sunroom Addition

I'm looking to add a traditional-style sunroom to the side my 2-story colonial home for both relaxation and to create a home office space. The room will be located above an existing 2-car garage (at the basement level), replacing a trussed roof... (Budget: $1500 - $3000 USD, Jobs: 3D Rendering, Architecture, AutoCAD, Building Architecture, Building Design, Building Regulations, Home Design, Interior Design)