PC 1 off perf Celestial Bow

The bow is Max dmg req 8, but its 14^50

Now what mods could I put on it to get the most money out of it?

I was thinking perf sundering and perf fort?

How much $$ could that fetch?

Thanks in advance.

~40k imo

and only mod it if you want to lose money. Modding will not increase the value of an item by more than what the mods are worth on their own