Trying to merge Dark/Demons Soul into DnD 3.5

[shadowgab]

I tried to incorporate the way of Demon/Dark Soul into 3.5. Here what I did by now and would like to have feadback and suggestion.

Here's my problem now:
Feat (As level rise with each abilities)
Magic (damage/Lvl)

Level is gained as the character buy stat with his Soul, each stat buy will level up the character.
Souls needed for raising stat to:
9-10: 1000
11-12: 1500
13-14: 2000
15-16: 2500
17-18: 3000
19-20: 3500
21-22: 4000
23-24: 4500
25-26: 5000
27-28: 5500
29-30: 6000
etc...

Weapon
Durability (%):
100 - 70: Full damage
69 - 40: Half Damage
39- 20: Half Damage (No mod)
19 - 10: Minimum Damage (No mod)
9 - 1: Damage = 1
0: Break

Armor
Durability (%): *Penalty add as the armor wear down*
100 - 80: No penalty
79 - 60: Add -1 to Armor Check Penalty
59 - 40: Lose 1 AC
39 - 10: Lose twice durability
9 - 1: Lose 2 AC and add -2 to Armor Check Penalty
0: Break

Shield
Durability (%): *Penalty add as the shieldwear down*
100 - 60: No penalty
59 - 40: Add -1 to Armor Check Penalty
39 - 10: Lose 1 AC
9 - 1: Add -1 to Armor Check Penalty
0: Break

Item:
Talisman: needed in hand to cast Miracles
Wand: needed in hand to cast Sorcery Magic
Glove: needed in hand to cast Elemental Magic

HP = Lvl + 20 + Constitution

MP = all spell/ miracles are number of time used by rest

Sorcery requires Intelligence
Miracles requires Wisdom
Elemental Spell requires Charisma

Classes

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Class: Warrior
Starting Level: 6
Str: 16
Dex: 14
Con: 14
Int: 9
Wis: 9
Cha: 10
(+12)
Equipment:
Bastard Sword
Heavy Steel Shield
Scale Mail

Class: Knight
Starting Level: 6
Str: 14
Dex: 12
Con: 16
Int: 8
Wis: 12
Cha: 10
(+12)
Equipment:
Longsword
Heavy Steel Shield
Half Plate
Talisman
-Cure Light Wounds (8 uses)


Class: Barbarian
Starting Level: 8
Str: 18
Dex: 16
Con: 18
Int: 8
Wis: 8
Cha: 8
(+16)
Equipment:
Great Axe (Masterwork)

Class: Magician
Starting Level: 6
Str: 8
Dex: 12
Con: 12
Int: 16
Wis: 10
Cha: 14
(+12)
Equipment:
Buckler
Dagger
Wand
-Magic Missile (30 uses)

Class: Elementalist
Starting Level: 6
Str: 12
Dex: 14
Con: 12
Int: 10
Wis: 8
Cha: 16
(+12)
Equipment:
Battle Axe
Padded Armor
Orb
-Produce (Fire, Ice, Lightning) (10 uses)

Class: Cleric
Starting Level: 6
Str: 12
Dex: 12
Con: 12
Int: 8
Wis: 16
Cha: 12
(+12)
Equipment:
Heavy Mace
Light Wooden Shield
Chainmail
Talisman
-Cure Moderate Wounds (5 uses)

Class: Thief
Starting Level: 3
Str: 10
Dex: 18
Con: 12
Int: 10
Wis: 8
Cha: 8
(+6)
Equipment:
Thieve's Tools (Masterwork)
Shortsword
Light Steel Shield (Masterwork)
Studded Leather Armor (Masterwork)

Class: Adventurer
Starting Level: 6
Str: 12
Dex: 12
Con: 12
Int: 12
Wis: 12
Cha: 12
(+12)
Equipment:
Shortspear
Heavy Wooden Shield
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