Alter some Images

I'm looking for anyone who can quickly remove the white background or (grey background for the lighter shoes i shot) Not looking for a professional retoucher, just looking for someone who can quickly do these shoes. There are approx 60 shoes, 6 angles each. Only do the a,b,c,d, e, f shots. I may have left in extra shot for your reference. I shoot this images on a weekly basis. I will need someone to help on this regularly Im not sure how this post thing works but i only can pay $100 this project. If you are quick with Photoshop, this should be a piece of cake. Majority of images are shot in white background already so you can adjust levels or curve. Please remove the stand and excess shadow or the grey paper. Beware of white shoes blending into the white background. In those cases the white of the shoe can be a slight tint of another color. Crop the image into an proportionate square, centering the item, leaving minimal space along the edge. Set a white point. For correcting White Balance and making the background whitest. Open up the photo. In the Adjustments layer, under Levels or Curves, set a white point in the picture. Due to the low light or White balance. The image should adjust to correct colors. If the is dramatic brightness/saturation change to shoe color due to white point select, please de-saturate. I want this to be done correctly. The folder 01_Example 18675 is a sample of a before and after.