Kevin Young wrote:

But it sounds like, from
what you say, I should get started on supporting documentation and send it
in myself without waiting for a formal request from them ... or does that
just confuse the process further?

That is likely to confuse the process further. At this point, you really need
to wait until they send you a request for supporting documentation. When you
reply, send them everything they ask for and anything else AOPA thinks they
might need. Add a cover letter that references the letter they sent you. Mention
the date and identifier of their letter to you, or include a copy of it (keep
the original).

Replying to their request will make it likely that the material you send gets
added to your file and considered. Sending it blind makes it likely that it will
get lost.

George Patterson
Some people think they hear a call to the priesthood when what they really
hear is a tiny voice whispering "It's indoor work with no heavy lifting".