The springs were for a '96 or '97 XR400 (I think it was a '96, but I'm not 100% sure), but that's all I know about them. I bought the bike years ago, and when I got it, it already had 50mm Marzocchi forks on it. The springs came with the box(es) of spare stuff, and have no instructions, preload spacers, etc. Just two springs with a note zip tied to 'em that says what they are.
Fast 200 - let me know if you want 'em so I can either send 'em to you, or pass 'em on to the next person interested.
As far as what to offer to the group, that's up to you. The idea is that it's something that you don't need that may be of value to a fellow rider.
Email me at cfaison@electricnixon.com with your address if you want me to send 'em out to you.
Craig