It is not just about the vehicle or sq foot area it is also the material that is used.
For instance the difference betwwen using 3M IJ-180 and Arlon DPF 6000 is about 50% more fitting time.
Arlons material is no way as forgiving as 3Ms and takes a lot longer to apply.
I am always suspect about fitting a wrap I haven.t supplied and printed.
I have had clients bring in material that was unbranded which was even more suspect whether it was wrap material or not!
For instance here in the UK we do a lot of repairs for a local paintshop on British Gas vans.
The material supplied is branded 3M (but god knows which one) it is liquid laminated and comes supplied with
paper application tape over the face! The material once removed of the application tape which has to be removed as
paper appplication tape does not curve is as thin and unmountable as anything you have come across.
It is a challenge fitting this to an acceptable level and has been used as a cost cutting.
I would add an extra 50% on to your normal fitting cost and state that if their is any failure or mishaps with the materials they supply that you cannot be held responsible and still need payed for your time.
SC