This should be a flavorful Angel of Death. Not a dagger build because too much investment in Vistani required. You can use any martial weapon with Master's Touch early and then at level 3 you will get access to all martial weapons with Spellsword.
The Dodge, Mobility, Spring Attack chain is almost purely for the active Spring Attack. I take Whirlwind Attack as low-hanging fruit at that point because it gives me a decent AoE attack with a 6 secnd CD. It's a good offensive resource but the real utility is getting away from a pack in a hurry if your health drops into the purple zone when Arcane Barrier triggers. If you don't want this ability then you have 4 non-Wizard feats to work with and can do something else perverse. You can also treat Dex like a dump stat in that situation and put 6 points elsewhere.
Note that this is most definitely not an endgame build but it is a 28 point build and it will do just fine in all content you are likely to enter. After you have some game knowledge and have mastered a good rotation it will do well solo at R1.
Human Wizard 20
Str - 8
Dex - 14
Con - 14
Int - 18
Wis - 8
Cha - 8
Skills - Spellcraft, Balance, Search, Concentration, Heal, Spot, Jump (to 3 and then stop as Jump spell + epic skills increase will cap you at 40)
Feats
1 - Extend, SWF, Dodge
3 - Mobility
5 - Maximize
6 - Spell Penetration
9 - Spring Attack
10 - Quicken
12 - Whirlwind Attack
15 - Spell Focus: Necromancy, Imp Critical Slashing
18 - Imp SWF
20 - Heighten
Enhancements
Harper Agent - 12
Agent of Good, Harper Enchantment, Strategic Combat I
Harper Training I - Int, Know the Angles
Strategic Combat II
Eldritch Knight - 41
Eldritch Strike, Imp Mage Armor, Arcane Siphon
Spellsword, Imp Shield, Imbue the Blade, Battle Mage 2
Arcane Barrier, Critical Mastery, Int
Subtle Force I, Knight's Transformation, Force's Point, Armored Arcana, Int
Subtle Force II, Imp Knight's Transformation, Knight's Arcanum - Knights Controller, Forces Edge, Eldritch Tempest
Eldritch Blade
Pale Master - 27
Dark Reaping, Negative Energy Conduit, Spell Critical: Negative Energy I
Pale Shroud: Shroud of the Lich, Spell Critical: Negative Energy II, Efficient Metamagic: Efficient Maximize
Undead Augmentation I: Beacon of Necromancy, Negative Energy Adept, Spell Critical: Negative Energy III, Int
Undead Augmentation II: Deathly Power, Unholy Avatar, Int
Flavor spells: Ghoul Touch, Fear, Command Undead, Create Undead
Key spells: Death Aura, Negative Energy Burst, Necrotic Ray, Arcane Tempest, Wail of the Banshee
Secondary spells: Acid Well, Iceberg, Meteor Swarm, Thunderstroke, Incendiary Cloud, Undeath to Death
Utility spells: Mordenkainen's Disjunction, Teleport, Dimension Door, Greater Teleport
Buffs: Jump, Imp Mage Armor, Imp Shield, Displacement, Haste, Greater Heroism