Archiving

Well finally, this time, I want to archive properly.
I have archived in the past but I feel not at all in an optimal way. It works but I find it messy.

I know I can trash all my renders. I want to keep all the original media.
I will trash all the transcoded stuff.
I planned on keeping an xml of the edit. Is this useful?
This is a documentary so I do have a lot of material.
I didn't plan on consolidating but should I ?
I would then have only the files needed in the consolidated project but I want to keep all the rest.

Anyone with useful tips is welcomed to let me know.

BTW I do have "final cut library manager" by Arctic witheness.
I have checked some of RTraining videos but they a seem a bit outdated or am I mistaken?
Thanks.

RT videos are valid.
You're on the right track.
Not much else for you to do.
XML file couldn't hurt.