Edit 400 Product Pictures - Remove Background exactly

There is a set of 400 product pictures from car parts with unicolored background (which is not sleek). What should be done: -> download the image from my webshop -> remove background (even cut the shadow) -> smooth the edge (Select -> Modify -> Border -> about 4px + Filter -> Blur -> Gaussian Blur -> about 0,1-0,3px) -> remove dark areas if necessary (Image -> Adjust -> Shadow/Highlight -> Shadow 10-20%) -> make a white background -> rotate the product for 20 degrees -> safe as PSD- and JPG-File (keep the size of the image - no scaling or cropping)