PC on Rare Sundering Storm Bow of Fortitude

The Storm Bow is 15-28 damage, req 10 Marksmanship. Damage 15 ^ 50, Sundering 10/10 and Fortitude +30hp. How much is something like this worth now?

I sold mine for 30 ectos, but I needed to clear storage at the time, so you can probably get a little more, roughly around 300-350k to someone who is in need of a 15>50 storm bow