Object Swap on 50 Images

I have 50 photos where a single generic object needs to be removed and replaced with a specific item image that I will supply. Each finished file must be exactly 1500 px × 1500 px and saved as a high-quality JPEG... (Budget: $10 - $30 USD, Jobs: Adobe Photoshop, Digital Art, Graphic Design, Image Processing, Photo Editing, Photoshop, Photoshop Design)