Others may know better.

For cleaning, I tend to remove the bolt, disassemble and use my ultrasound jewelry cleaner. Ditto the magazine.

As far as I know (and I'd love to be corrected on this), use the proper sized screwdrivers to remove the upper sling mount, the recoil lug and the trigger assembly. From there, the action/barrel can be removed from the stock.

Oh, and if you do decide to find older ammo, beware of Berdan primers. In addition to being useless for reloading, they are likely to be quite corrosive.

Hope that helps.