PoE Cast On Critical Strike, Cyclone, Ice Nova, Cold builds

I have pretty much everything I need to swap to LL except a belt. Crystal belts with 14% cooldown recovery seem to be absurdly expensive, so I'm trying to craft my own. I really only want a decent ES roll and 14%+ CDR on it (I'm already overcapped on res except chaos), and anything else is just gravy. Anyone have any idea how I would go about crafting this? I already have an ilvl 85 shaper crystal belt. I currently use Ice Nova of Frostbolts in my main CoC link and Frostbolt in my Cospri's. I see a fair amount of people using

I elaborate a CoC Icenova around 1 or 2 ex max (cheap 6 link) can someone help checking the PoB that understant about CoC builds, I think theres a looooot of room for late game. This build is designed to rush red maps, delve, contracts and not hardcore stuff. POB:

Hello again everyone. So after being mostly finished with both Ele Hit and SA I decided to sell off some of my Ele Hit gear and fund this. The core of the build is basically just scaling flasks and some mana on top. I stack around 100% increased flask effect so Bottled Faith gives me +4% base crit, then I get 2% base crit from Kalisa's Grace, a lot of increased crit from flask crit craft, bunch of attack speed from flask craft as well. For mana recovery I stack Distillled Perfection and Liquid Inspiration, some mana recovery, flask recovery and also ofc flask effect on top, al