A Graphic Novel

Hello, I hope you are doing fine today. I wish to convert this story idea into a graphic novel or a comics book. The story is about a character called (The Psychotic Patient) which I have developed a bio for him. If you would like me to write the scrip or the dialogue of the story panels please let me know as I consider myself to be a dramatic writer. I will be waiting also to tell me the average cost for such a project. Thank for your help in advance and looking forward to hear from you soon. Kind Regards, Kareem