On a budget?
Something like this could work:
Head: Ancient Samurai Helm
Chest: Rune Beetle Carapace
Legs: Fey Leggings
Arms: Imbued, High Resists, Stamina Increase
Gloves: Imbued, High Resists, Stam Inc
Gorget: Imbued, High Resists, Stam Inc
Jewels: Get DCI, LMC, HCI, Mana Inc.
Aim for at least:
70 All Resists
30 Lower mana cost
45 Defense Chance Inc
30 Hit Chance Inc
7/8 Mana Regen
150 Stam (or else use a fast weapon with lower stam)
130 Hit Points
50 Mana
Shouldn't be too hard to put something together for a few mills that will do you proud in doom.