PC on Phoenix blade and Oni daggers

Could anyone please give me a price check on these 2 items:

1.
Shocking Golden Phoenix blade of swordmanship
damage 15-22(reqq. 9 swordmanship)
Damage +15% while health is above 50%
Swordmanship + 1(chance 19%)

If I would mod the blade with say fortitude and furious?(not sundering, for Gwens sake) would it increase their value more(as in more then the mods costed) and would it make them easier to sell?

2.
Oni daggers of dagger mastery
damage 7-17(req 12 dagger mastery)
damage +15%
energy -5
dagger mastery +1(chance 20%)

dont mod

250-300k+

10k these are very common

anyone else perhaps?