After almost 5 years not playing GW, I came back to end up the storyline of all the different campaigns and extensions. I am now trying to make some money out of all those old toys I had rusting in the bottom of my chest...

I have an Old School Shadow Blade, that used to cost a lost back in the days... For some reason, I never sold it and now I would like to get some money out of it.
So... the sword is:
Zealous Shadow Blade, Req8
Max Dmg
15^50
Zealous 1/-1
Armor +5
What do you guys think is the value of the blade?
I thank you all for any help.
Regards,
Miguel