I do not understand Gina, if you arn't intending to file the papers yet, what is the good of filling them out? That can be done in minutes at the time you do wish to file them. As to HBSOC, it doesn't matter when you legally change your name, or even if you do, that is strictly up to you, though some therapysts may not consider your commitment until you do and thus recommend for surgery, I wouldn't worry about most though as long as you meet eligibility and readiness requirements.
If you mean to just obtain them so you have them when you need them, nothing wrong with that at all, providing of course they are current at the time of filing.
Terri