Ecom image retouch

Hello I am looking for specialized designers that can retouch a very large amount of images in small time
The images are for ecom mainly 2 kinds of retouching
1- basic: skin smoothing, wrinkle smoothing, backround cleaning, color adjust
2- plus: more detailed skin smoothing, more detailed wrinkle smoothing, backround cleaning, color adjust, cut the backoround, producto editing when necessary

I need to have price for this and guaranty of deliver time
The volumen can be between 400 to 500 images monthly to start