Warmage is garbage since you need to have your hands free to cast spells. The armor is nice, though.
Warmage is the absolute worst kind of gish. Why would you waste levels getting a bunch of armor synergies when mage armor is better and 'cheaper'?
Anyway, to get Thurvast within budget: Dropped Vest of Con+2 (-4k) Realised that a +1 Greataxe was actually only work 2k, lol (-6k) Dropped belt of str+4 (-16k), Changed cloak of resistance to +2 (-5k)