Cropping and re-touching photos

On a project basis we are looking for someone to be able to crop and retouch sport photos (football, basketball, and soccer). We would provide you FTP access. The work would usually come on a Saturday US time and request to be completed within 48 hours. Retouching would only include color correct, auto fix is fine. Please detail in your bid how much you would charge per photo or per project. If you have any insight on how best to handle the transaction that would be appreciated. We are looking for a long term partner on a weekly basis.