Total WBL: 760,000gp
Items:
Heward's Handy Haversack (2,000gp)
Cloak of Obviousnesss (133,000gp)
Tome of X +5 (412,500gp)
Mithral Dastana with Wand Chamber (1,325gp)
Mithral Chahar-Aina (1,075gp)
+1 Twilight Mithral Chain Shirt (9,150gp, plus other enhancements)
+2 Quick Loading Skilled Heavy Deathwand Light Crossbow (52,635gp+Heavy's price)
+1 Defending Eager Initiative Warning Feycraft Adamantine Spiked Gauntlet with Wand Chamber (55,805gp)
+1 Feycraft Spiked Gauntlet with Wand Chamber (3,805gp), plus other enhancements
Lesser Crystal of Arrow Deflection (25,00gp)
Rod of Many Wands (27,000gp)
Belt of Various Benefits (14,750gp) (Healing, Cincture, and Battle)
Lesser Crystals of Energy (one of each, 12,000gp)
WBL remaining for spells: 147,455gp.
WBl Used: 612,545gp.
All that's left is to decide which spells you want in which magic item (IE which spells you want to be in an Eternal Wand, which spells are in a staff, etc). Oh, and find the price modifier for Heavy. IIRC, it's about 3k.