Cut out images and put on transparent background

I am scoping the possibility of using a freelancer to cut out our website images, to improve the look of website. Depending on cost, we currently have up to 1350 images that potentially need cutting out. I guess i'm looking for a 'cost per cut-out', to get an idea of whether this is a financially viable proposition. The cut-outs need to be high quality. Due to the nature of our product. I'd like the edges of the items visible, with no bits missing. To get an idea of the images I want cut out, there are some on this url: [login to view URL] If you click on the thumbnail, you get a larger version of this image. I'm looking to get the large version cut out and then a thumbnail generated from the cutout. We add around 25 new products to our site each week, so this could be an ongoing job. I'd need a price for the ongoing work separately from the initial job. Please let me know if you can help. Thanks, Ben