Photoshop some photos

I am looking for somebody to edit several photos for me. I basically need a face added to replace the existing face on the photos. I only require the face to be edited. There are several images with different angles and none are face on photos. The editing will need to look highly professional and not just like the face has just been stuck on. I will supply an image of the face of 3 different shots.

I think there could be around 30 -40 images to edit. Please only quote if you think you can carry out a professional job.