From my SRS data
1343991 SPT 071730 DCM RIFLE SALES 1922-42
1343994 SPT 052130 DCM RIFLE SALES 1922-42

Vishooters page shows the J5 bolt stamped on top was used until rifle 1295350 06/28. It also gives the following productation date info, as does Brophy in The Springfield 1903 Rifles:
1930 Jan 1 - 1338406
1931 Jan 1 - 1369761

There's nothing concrete about these dates, except perhaps the production number starts. A 2/29 barrel seems early to me, but I am no expert and anything is possible.

It is a beautiful rifle, one that anyone should be proud to own, and even more so with the sentiment attached to it. I can't help with the stock. Thanks for sharing it and welcome to the board.

It ain't ignorance that does the most damage, it's knowing so derned much that ain't so! J. Billings