That is a fine rifle. You have the right idea about a scope. I had a Weaver 330 (bought it for $25!), and found it to be a superb little scope. And I like your scope mount a lot.
I have several projects in mind along these lines. One is to convert a ZBK110 to something more substantial than .222 - say a 7x57R, .30-30, .30-40 or .32-40. Another project involves converting a M94 Stevens .410 to .30-30.
You mentioned Express sights: what do you have in mind? I'm always looking for a good source.
Bandukwallah
