From what my Gunsmith told me, just the M1 will START at $500.. & only go up if the rifling is good. which it is.
I just stripped em all down, & the M1 was made 11/1944.
The SKS def saw sub-tropic temperatures.. Judging from deep pitting under the stock.. & also has the early 60's style rear sight.
Yeah it comes out to $90 apiece for the long guns, & $200 for the DW..