Widowhail - Go for 245%+
Rearguard - Go for 15% Spell Block, 22%+ Attack Block, 28%+ Projectile Speed and all other stats are whatever
Kitava's Thirst - +2 Curse gems is relatively cheap
Nightweave Robe - This SHOULD be relatively easy to straight buy, you just want 1 open prefix to craft spell block.
Sage Gloves - Should be relatively easy to purchase.
Sage Slippers - Should be relatively easy to purchase.
Atziri's Foible - Go for as good of stats as you can afford and give 20% Mana quality
Anathema - Immune to Poison is the obvious upgrade here once you can afford it.
Amethyst Ring - Get a T1 fractured resist and use Deafening Dexterity Essences until you hit Chaos res. Finish with a Suffixes can't be changed -> Veiled Chaos + Craft a 2x ele damage to block, unveil mana or life and craft the other.
Darkness Enthroned - Get as high of a % as you can afford, over 95% isnt a huge deal.
Hypnotic Eye Jewel - 1 with %Chance to Avoid Shock and all other mods should be Mana, Life, Cast Speed if you've crit, and stats.
3 Charges when hit on ALL Flasks is important, the location of the suffix doesn't matter.
Divine Mana Flask - Catalysed T1 and whatever suffix, bleed is best.