What type of sandpaper to remove rustspots?

[alex]

Well...at least I got your attention.

I finally had the chance to examine the Luger I was offered. I gathered the following info based on advice I received and reading this website.

General: It is a military P08 complete, except for mag, and in working condition (cocks, fires, safety works). Now that it is not in front of me I do not recall if it had the stock lug or a hold open (no mag to try).

History: It has been in his family since the 50's and has not been fired, to the best of his knowledge, during that time since they did'nt have the mag.

Condition: The bluing is uniform overall except for wear at the muzzle, sideplate, grip area and "highpoints" where it has been handled. There is no deep pitting, however, there are small surface rust spots on the grip area (size of pen tip). They will scrape off with a fingernail. What is the best method (other than sandpaper!) to remove these spots? "Straw finish" is visible on trigger, safety, mag release and ejector. it is worn off the front of trigger and safety. When safety is engaged, safety lever that pops up is unfinished silver. Grips do not have any cracks, gouges or chips. Bore is dirty but sharp rifling is visible.

Markings: As per the pic on this site, a DWM on toggle top, 1913 on chamber top.

- Left side: 1597
- Front below barrel: 1597(lower case "written b" below it)
- Underside of barrel: 1597(with same small b)
8,82 Bo24 (2 dots over o)
- Right side: Proofs (did not look too closely, to be honest)
- 97 on extractor, toggle front, toggle rear, sideplate, trigger(under sideplate), trigger bar (in the on safe position), takedown lever. I did not strip it completely, would there be others?

What type of mag would be correct for this Luger?

He is quite content to take $175.00 for it. I intend to buy it (and will take some pics), unless the info I have given indicates otherwise to this forum.

Is there anything else I should consider, prior to purchase?

Thank you in advance.

Regards, Alex