I can bring a different view on this...I work for a auto OEM with a very low production rate, we are alittle under 1000 units.
We have about 350 parts that need to be PPAPed.
We typically get level 1,2, and 3 PPAPs. We have not had too much trouble getting our suppliers to provide PPAP documentation. We ARE flexible on the format and that seems to have helped the most.
If you are a typical job shop your flow diagram may be identical for many parts:
rec inspection->machining->inspection->packing
In addition I have allowed supplier to generalize the
PFMEA, E.G. a machining job shop may have "hole oversize" for a failure mode instead of listing every single hole size.
On control plan I have also allowed supplier to group dimension that are all controled the same. E.G. a vacuum formed part were all the dimensions are formed and thne inspected on a CMM.
hope that helps!
kdee122