This will probably make all the DM's scream, but...
Intelligence being the primary ability, a wizard probably has at least a +2 modifier.
So, just putting 4 - 6 skill points in Craft; Armorsmithing and the Fabricate spell would provide you with 250 (Banded mail) to 1500 (Full Plate) each day for one-third the cost. And how many 9th level Wizards don't have 90 gp for materials?
Intelligence being the primary ability, a wizard probably has at least a +2 modifier.
So, just putting 4 - 6 skill points in Craft; Armorsmithing and the Fabricate spell would provide you with 250 (Banded mail) to 1500 (Full Plate) each day for one-third the cost. And how many 9th level Wizards don't have 90 gp for materials?