Tombstone 3D Modeling & Renders

I have an online store that sells custom tombstones and I need every product shown as a realistic, web-ready 3D model. There are 15 distinct shapes; each shape must appear in four different stone finishes, giving a total of 60 textured variants... (Budget: $750 - $1500 USD, Jobs: 3D Animation, 3D CAD, 3D Design, 3D Graphic Design, 3D Modelling, 3D Rendering, 3D Visualization, 3ds Max)