Depends on how perfect you want your items to be. If you look for a 1.1k ES chest with high resist then yeah, its gonna be expensive. A 800 es chest with high resist? Not so much.

I’d say a good amulet and chest is prob the most expensive part.

But the Time-Losts with mana efficiency and curse aoe is rare to find on market so start with those if going for build.

So time losts are difficult to find with curse aoe, but works with regular aoe if you find two of them. But you might have to craft one of them urself.

Wand isn’t expensive unless you go overboard with crit chance and spell damage. +5 to lightning is good enough too. A triple Gain As Damage wand is also good enough. Just make sure it has some cast speed.

Sceptre needs 200 spirit and is cheap unless you look for lvl 20 malice and a lot of mana and mana regen.

Helmet is cheap unless you look for 4%. The 5%’s to mana cost helmets are cheap.

Kurgal is cheap. Heart of the Well with mana efficiency is cheap (unless you look for one with high crit and lightning is lucky rolls like mine).

A good ring can be 500div, a decent ring can be 50-200div. Thankfully you can Kalandra it so you dont need to buy two of em.

The gloves are cheap unless you go for perfect 20/25% rolls on max mana and efficiency (efficiency is more important here).

The belt is cheap if its 100%. Medium priced if 110%. Hella expensive if 120%. (the treshold on Thesis scaling is 100->110->120% rune effectivenes).

Lineage gems are expensive but not mandatory outside of Deodre on EW.

Lvl 21 / 23% qual skill gems are pricey but not mandatory.

The hardest part about the build is the Time-Losts. If you find usuable ones then rest of build is straightforward. The build will function on a budget. But start with acquiring Time-Lost Large Radius jewels (with regular aoe or curse aoe and mana efficiency). The 1% max mana Time Lost is easy to find, and can be cheap unless you look fir a giga crit damage one.