From that info we can tell the rifle is a No4Mk1/2 .
What that means is the rifle was originally a No4Mk1 and later converted, in 1956 most likely, to the No4Mk1/2 pattern.
The work would have been done at Fazakerley.
The reason they did this is that post war they developed the No4Mk2, which was made at Fazakerley and had some changes to the No4Mk1 pattern, most notable the trigger was moved to be hung from the receiver unlike the No4Mk1 which is hung from the trigger guard. This greatly increases the trigger feel.
The No4Mk1* was introduced during World War 2 and had some expediencies to the standard No4Mk1 pattern, including removing the bolt head catch (used to remove the bolt) and utilizing a cut out in the bolt raceway instead.
No4Mk1* rifles upgraded post war to have the new trigger hanging etc are designated No4Mk1/3.
The only factory to do conversions to the Mk2 pattern was Fazakerley as far as I know, and they also made the only new built No4Mk2's until they sold machinery to Pakistan (POF) who continued manufacture.
Regarding reproduction No32 scopes, I've had 3 RSM manufactured one. all 3 came with critical issues that prevented them functioning, i'd personally recommend a period Lyman Alaskan with the post reticle.