ID Campag Hubs - Chorus?

[gfish]

Hi all,
Just bought a pair of old Ambrosio Nemesis, laced to what look like 32H Chorus hubs. I chucked the rear in my 130mm frame and it looks like the rear hub is 126mm.

I was told the hub was Chorus and the lockring says Chorus, and there is a 10 speed cassette (I assume it is a cassette and not a freewheel hub). But, in my research, Chorus 10s was 130mm..?

I guess it isn;t a problem and can use washers, which leads to my second question, can I just use 2mm spacers on each side (or 4mm on one side?) and should I replace the skewer and do I need to redish?

Barrage of Q's but it is my first go at buying components so I'm a bit lost/clueless. Thanks for any help.