Big Al, when you say its £1000 a month to you, is this all profit ?
If it isnt, i would not bother with ISO 9001, i walked away from job that made me £2000 a week, and still found it was the right decision, it is a great policy for large organization ,where anyone could walk into a job, read the manual and understand what needs to be done, but we dont need a manual, its all up here.
We did get an iso 9001 mentor , spent thousands, and this was in the early 90`s, and then decided to walk away, just my oponion
idealrob