Edit 46 product images - clipping white backgrounds

Hi,

I have 46 product images (shoes) that need the background clipped to white. The images were shot and lit on a white background but the background not 100% lit - some are very close though so it should be an easy and straightforward job (some samples attached). I'd normally do these myself but I have a packed scheduled and a tight deadline so ideally someone to work over the weekend on this and deliver on Monday.

No editing to the shoes themselves are required (I'l do that myself), but any slight shadows and/or reflections on the background need to be maintained as well as the perspectives etc.

Some low res examples are attached.

In your proposals please do share some before/afters if you can.

Thanks