Photorealistic 3D models

We wish to produce animated 3D photorealistic 3D models of our furniture. The furniture is multi function so we need to show it being converted from one thing to another eg a sofa to a bed. So we would need a render of it as sofa, as bed, and 2-3 stages imbetween as it is converted. We will provide images of each stage. The purpose of this task is because our photography is not good enough and so we wish to replace photography with 3D models. Please quote per item, if it works out we will have a number of products to do.