Summarizing...
4th: +1 chainmail (1,250 gp), masterwork composite longbow (+5 Str bonus)(900 gp), greatsword (50 gp), +1 cloak of resistance (1,000 gp), tanglefoot bag (50 gp), potions: bull's strength (300 gp), cat's grace (300 gp), protection from arrows (10/magic) (300 gp), shield of faith (+2)(50 gp), cure light wounds (x2)(100 gp). Total: 4,300/4,300 gp*
8th: +2 light fortification chainmail (7,000 gp), +1 composite longbow (+5 Str bonus)(2,900 gp), greatsword (50 gp), +1 cloak or resistance (1000 gp), potion of blur (300 gp), potion of keed edge (750 gp). Total: 12,000/12,000 gp*
12th: +3 plate (9,000 gp), +1 frost composite longbow (+5 Str bonus)(8,900 gp), amulet of health +2 (4,000 gp), gauntlets of ogre power (4,000 gp), +1 frost greatsword (8,350 gp), potion of haste (750 gp). Total: 35,000/35,000 gp*
16th: Demon armor (52,260 gp), +1 composite longbow (+6 Str bonus)(3,000 gp), +1 icy burst greatsword (18,350 gp), +1 heavy mace of disruption (18,312 gp), cloak of minor displacement (24,000 gp), amulet of health +4 (16,000 gp), belt of giant strength +6 (36,000 gp), efficient quiver (1,800 gp), : Total: 169,722/170,000 gp*