start by writing headings of subjects..then break down those subject areas into a few more subject areas when you ve got about 2 or 3 sets of subject areas...then start listing items under each of the lowest level subjects (a bit like the way the sub forums on this site are organised)
so may be something like
im guessing most of these for camper van fitting)
Utillities
-Electrix
-Plumming
-Gas
Fixtures & fittings
-upholstrey
-floor coverings
-windows
-Wall coverings
Structure
-weight limits
-reinforcements
-no-go areas for fixings
-corrosion
Time & number of people required to do certain jobs
-(may be list / repeat some of the above?)
Common pit-falls
-things that can catch people out during fitting and how to avoid
Hazards while working on a camper, health & safety precautions
-working inconfined sppaces
-personal protective equipment
-noise?
-flammable materials
-adhesive fumes & ventilation
any special tools or skills required
MOT
- drivers view
-