ckeditor and drupal

I am in need of a drupal 6.x expert, that has experience with the ckeditor module. I have a staging server with a new install of a drupal site with ckeditor installed. I am building a module that must use the ckeditor to markup text within a text field. In total, I need four custom buttons added to the CKEditor that will be used to add specific markup to the text in the text field at the current cursor position. I need you to add these four buttons to the ckeditor, and provide the functions that insert the markup. Once finished, I need you to explain in a document how you accomplished the tasks, which files you had to edit, and what drupal settings you made, so I can replicate your actions on my live server. Please contact me asap with how much time you need to complete this, and when you can start