Website Product Tile Retouching

I have 185 product photos that need to be transformed into clean, consistent tiles for the product-display sections of our site. Most of the source files are low resolution, so upscale work and careful sharpening are essential... (Budget: $250 - $750 USD, Jobs: Background Removal, Graphic Design, Image Processing, Image Upscaling, Photo Editing, Photoshop, Photoshop Design, Product Photography)