In this case, however, "Keep It Simple Stupid" as they say is not best served by the effort involved in constructing yet another type of form which can be filled out 'on screen' (as can a pdf) and then having to use an emailed or posted pdf form for those who 'cannot' perform this miracle act with a webform.
I think Chicken and Avtrician have it, unless anyone else has a simple solution. It just needs 'advice' on putting the 'not-so-smart-phone' right.
Hopefully one day computing will come into the 21st Century.