So! Went back and played #2 through the OC, and found out a few things.
First of all, I did miss having less spells a little throughout the game. There was less variety in options to kill things, and not having Ghostly Visage at level 3 was a little sad. That said, the extra skills and feats that this build gets as compensation turn it into a scary melee character. For the entire game.
For the first Chapter, given the lack of Ghostly Visage to start, I visited Beggar's Nest first and cleared out the main level and houses of monsters [which *just* got me to level 4], then went back through Peninsula, Docks, Beggars and Blacklake.
Cleave and Splint Mail very much help in the first Chapter. With Heavy Armour on, buffs have to be cast before fighting. I tried Great Cleave at level 9, and it was silly. Nothing like a 1 attack per round pseudo-wizard smashing through a horde of zombies in 10 seconds!
Melee was so effective in fact (again, Cleave is awesome) that I found myself rigging out my spellbook at level 7 wizard with 2 Ghostly Visages, Bulls Strength, Flame Weapon, Mage Armour and Extended Shield, and the rest of spells as Expeditious Retreat, Haste and Extended Haste, to maximise running and bashing capacity. That is until Robes of Dark Moon came along in Chapter 2, by which time the spellbook was just Darkness, Fireball/Empowered Fireball and Buffs. To get extended haste, I delayed the rogue til level 9, which is still in the 1st Chapter.
I rarely used offensive spells throughout. The high number of caster levels however were not wasted. They helped to attain Max Flame Weapon Damage. Forceful Hand, Shadow Shield and +5 Greater Magic Weapon, as well as slots for extended damage shields once the character had enough levels to stock a few of them.
All in all, super strong from start to finish, albiet a little more boring than #1. Though it was rather efficient at beating everything to a pulp. '>
Obligatory selfie, Pre Morag fight.