Need a little help with 1937 S/42

Thanks for the info guys, I was hoping I didn't get ripped off. Since this gun is going to send rounds down range (hopefully often), I was wondering what parts I should replace to avoid wear and tear on the originals. Also, the toggle and bolt carrier lock to the rear when the gun is charged and the magazine is in place. It releases and slides forward when the magazine is removed. Is this the way they work, or do I have a mechanical problem? P.S Ted, what kind of a wait do you have for restrawing and spot bluing? And what is the cost of those services and a pair of wooden grips? I figure she should look as good as I feel about owning her! Thanks again - Denny