Here are my purchases:

NAME: Jeremy 	SEX: M
CLASS: Myrmidon 
COST: 4800 + 350 (Bronze Sword) + 300 (Vulnerary) + 380 (Thief reclass) + 450 (Archer reclass)

NAME: Carolyn 	SEX: F
CLASS: Fighter
COST: 4700 + 350 (Bronze Axe) + 300 (Vulnerary) + 510 (Wyvern Rider reclass) + 480 (Mercenary reclass)

NAME: Arianna 	SEX: F
CLASS: Knight
COST: 4700 + 350 (Bronze Lance) + 300 (Vulnerary) + 520 (Pegasus Knight reclass) + 490 (Cavalier reclass)

NAME: Thomas	SEX: M
CLASS: Wizard
COST: 3800 + 500 (Wind tome) + 550 (Flux tome) + 380 (Mage reclass) + 470 (Shaman reclass)

NAME: Petra SEX: F
CLASS: Troubadour
COST: 3700 + 600 (Heal staff) + 150 (Herb) + 390 (Monk reclass) + 360 (Cleric reclass)

TOTAL === 29880