Groucho,
You stated
(a)
forms which can ideally be filled out 'on screen', having text and 'click' boxes, and emailed back.
and
(b)
Currently a significant number of 'customers' use only (not-so) smartphones or tablets and either don't know about or have not installed apps to handle MS Word docs.
Thus.
(a) Is perfectly within the skill-set of a bog standard web form.
(b) Do not require apps, plugins and work as expected cross-platform, cross-browser
Thus you would be well advised to heed my sage advice on this occasion. "Keep It Simple Stupid" as they say.
However, if you want to deal with the
"Groucho, why isn't this working ?" "Well John, its because you didn't install X/Y/Z as we told you in the email that went out last century" type RTFM phone calls, then be my guest....