Byron, if you are convinced it is all matching (both externally and internally) it sounds like a good deal.
Just remember, if it's too good to be true, it probably is. It would be nice if you could identify fake bakelite grips, since this is one area that could be difficult for you to judge.
Don't worry about the magazine not matching, you can pick up a nice one later for $$$, of course.
The internal parts are the trigger, main toggle pin, hold open lever, breechblock and firing pin and they should all me marked with "29".
If it has 90% blue with the wear on the correct places, it it may not be a reblue!
The pistol is relatively rare, because of the acceptance marks (one E/655 and one E/135). These were made at the end of the 1941 production and very likely contain both 1941 and 1942 parts.
It would help if you had some photos!! Hope this helps.
