If she uploads all her documents, and the trial expires, will all the documents and configurations remain there when she activates the module on production?
Yes.
Right now her site is running under a provisional URL until December, which we intend to move the site to the final production URL. Is it possible, if need be, to extend her license in case the initial 30 day trial are not enough?
You need to contact me by email when the 30 day period expires. There is a way to extend it, yes.
Peter