Portrait Photoshop Expert Needed

I have 25-30 portraits and group photos that require professional editing. The tasks include changing the backgrounds to a standard portrait studio look or an outdoor location (midwestern trees or something) and performing color correction. There is one photo "All Family" that I would like to know pricing on removing cardboard cutouts of 2 members and replacing with photos of those people. I have included a few samples of the photos.

Ideal Skills:
- Proficient in Adobe Photoshop
- Experience in portrait editing
- Excellent color correction skills