Your rifle was remanufactured in Colombia in 1952 by R. Famage. It looks like a 1950 FN mauser rifle, sold to the Colombian military, based on the receiver crest.
https://www.libertytreecollectors.co...idproduct=1206
Here is a cross check source you can use to better establish the model type.
http://www.hoosiergunworks.com/catal...reference.html
With these resources you should be able to locate a surplus military stock, but honestly, with that highbuff/gloss metal finish, it will never truly look right.
(P.S., your Brownells link is not complete, as it sends you to an error page).