Galaxiedan,
I have completed the Ruger LE Armor course twice but I can not talk you through it. It is not hard but in is a little intricate. To learn how to do it you will need someone right next to you walking you through it the first few times.
The current Ruger Bolt design has been modified from yours. The current Ruger bolts do not use ejector pin and spring and instead they modified the bolt lock plunger assembly.
When I send a Rifle back to Ruger for a repair beyond my ability that is of older design, they modify it to the never design.
May I suggest that you give them a call and see what they have to say. I expect that they will want the complete rifle, not just the bolt.
The ranges rifles that I work on are real rugged and can take a lot of rounds without issues.
You might want to mention the worn section of the bolt that is seen in your picture. That divot on the bolt that is seen in the picture. You might be able to get the repair completed based on that. I believe that those are caused by the bolt lock plunger for receiver web.
Anyway, give them a call or contact a local smith for extractor replacement if you think it is required.
Keep us posted on status.
Bill