(Post #127 got me thinking. Saw "The Giant Gila Monster" last night, movie full of "teenagers" and their hot hods.) In the 1950s-1960s the WWII military surplus rifles that were sporterized were like the 1920s-1930's cars that were hot-rodded: it was that, or the next stop was to be scrapped for parts. Either basis of a custom or bubba job, or, sent to Numrich Arms Gun Parts or the junkyard.
That said, the .303 Lee Enfield had a relatively thin, whippy barrel and often was more stable in full military dress (and the gun less punishing to the shoulder) than the "semi-sporterized" versions popular in the 1950s. But none of the stocks or finishes I saw in the barrel at the Army/Navy Surplus store looked collectible grade. They made cheap deer rifles for the farmer who could barely afford a single shot .22 or single barrel 12ga.
ADDED: previous post ^ I suspect "beenie-weenies" and Ramen noodles have helped finance a few gun buys -- or even collections.