"Say What You Do and Do What You Say" - Concept of ISO.
First of all, you have to prepare a Quality Manual comprising of quality policy, quality objectives, company procedures, checklist, process flow, and procedure for various departments, their departmental objectives, organization chart, Management responsibility, Resource Management, Product realization, Measurement, analysis & improvement via corrective action request.
My sincere advice for you is to appoint one person for each individual department. The relevant person will prepare the flow and document the procedure. Take a span of time to gather all the documents from each department, and then proceed to compile the Quality Manual, which is more practical and will yield good suggestions.
I have been working on ISO for around 8 years and have implemented and obtained certification for my previous organizations.
Make it a point that while obtaining certification, it should be a team effort leading to more success. I have worked with 3 certifying bodies: BVQI, AQA, SGS. Everywhere, the system conveys the same thing - "Say What You Do and Do What You Say."
I have attached a registration form from one of the certifying bodies; you can contact them directly or email them for future guidance.
Regards,
Kamal Amrohi