dig4gold,
Be careful to all who buy Mauser actions to build that dream rifle. Not all Mauser actions are built to the same exacting qualities that we think of when we hear "Mauser!" Mismatched bolts, receivers and other parts on top of poor case-hardening (heat treatments) will give a person more than a pain in the behind.

If you are dead set on building on an old Mauser (and I would recommend the 1909 Argentine Mauser) take the time to review a book by the name of "The Mauser, M91 through M98, Bolt Actions, A Shop Manual," by Jerry Kuhnhausen. You might be able to find it at a local library. Or better yet, but it for yourself, it makes for some great reading.

Be safe!