PhotoShop Image Altering

I need someone with Photoshop skills. The end result will be 9 images of headshots superimposed onto "superhero" bodies. These images will be used to introduce individuals at a work conference, where the conference has a superhero theme. I'll provide the headshots. We would have to search online for the superhero bodies onto which the headshots will be superimposed. Superhero examples include Batman, Superman, Spiderman, etc. Quick turnaround is a must - also, flexibility to make slight alterations to the images based on feedback of the users of these images will be needed. Thank you for bidding and I look forward to potentially working with you!