Render 3D Model Photorealistic

Hi, I am in the process of creating a solid model in AutoCAD (.dwg). It is an image of a farm shed, it has a timber framing and is clad with corrugated iron. It has an open front and it needs to be rendered so the inside is visable. I have attached an image as an example but this is a poor representation of what the shed should look like. I will provide the model with individual layers for each material type. What I require from you is the ability to: Create real world lighting Life like radiosity inside the shed Realistic sky and grass, very important. Create the corrugated iron effect to look as realistic as possible. Time Frame: I should have the model completed by Thursday, Friday at the latest. We then have the weekend to render the image, it must be complete by Sunday night New Zealand time. Examples: Please provide me with links to your work, specifically outside views. I am looking for a photographic rendering style with real world lighting, the more realism the better. If you can help me prove myself in delivering a high quality rendering I will get more work. Please do not bid if you cant. Budget $30 Thank you, I look forward to seeing your work.