Helm: Either TU cap (spell damage) or Full helm (+skills, vitality bonus)
Weapons: 2x Tu Wristblade (+skills, cast speed). If you can afford the dex requirement, go for 2x Scizors Katar, but don’t overdo on this.
Armor: Tu Lightplate. I stopped at T3 because of strength requirements, I let the charms boost by strength for T4 later.
Belt: TU belt. (Spell damage, resists.)
Boots: T4 boots. (Spell damage, mf.)
Gloves: honorifics. Put whatever breakpoint you need, resistances, mf, vitality.
Rings and ammy: rares with +1/3 all skills, spell damage. Other stats are nice to have.
Sockets: PDiamond for weapons, spell damage crafted jewels for the rest.
Invest minimum stat for gear and go full vitality.