That's a bit of a tough call to make; the Evoker set wasn't really ideal for crit builds. It did amount to 6% CC (2 from the belt, 2 from the shoulders, 2 from the 5-piece bonus), but it came with very hefty feeds that sapped ACC and thus CDB. That's why most Evokers I remember eventually went for +stat Legendaries instead of those; lower CC, higher CDB. CCM can let one critcap anyway, so the base CC loss isn't terrible.
So, especially since the full set isn't even an option, I'd go with Veiled Threat (1) and
Lazy Envoy (1-2) along with its shoulders; you're ending up with 3% less crit than the Set, but you also get CDB from the miniset shoulders, armor penetration from the belt, and you escape Balbi's hidden power regen penalty. So you should end up with 11 base CC:
1 inherent
4 from the expertise
3 from Dark Monarch
1 from Veiled Threat
2 from Lazy Envoy belt
Sadly, you'll be missing out on another 3% (1+2) from the PvP achievements. But still, with 11 base you'll have up to 21% per hand (assuming Nemesis' Glyphshards), so you'll be able to critcap with ~350 CCM. Then you'll have 4 armor slots free to bump CDB through +AA/+ACC.
That's essentially what I did with my Evoker and
toxic Summoner in the Global days, and both worked pretty well even with modest +7 foci. My Evoker handled most Hell content aside from Base Defense, and my Summoner soloed Hell Imhotep with those numbers:
- Critcapped +7 Glyphs with a total of +71% elemental damage
- 1k clean cdb and 400 caste cdb
- +90% minion hp,+40% minion armor from set/stat pieces,and an added ~110% hp and ~125% armor from the cast set (2 Masters of the Dark)
Granted, Steam isn't exactly the same, but it should be similar enough - and you do have extremely easier access to +9 or higher foci.
