pc on a few bows and a staff

any info would be much appriciated

all are max damage

1)Poisonous Longbow of Shelter
(req 9 mark)
damage +14% in stance
lengthen poison by 33%
armor +7 vs physical

2)Zealous Storm Bow of Warding
req 10 mark
damage +15% while enchanted
gain 1 energy on hit
energy regen -1
+6 armor vs elemental

3)Vampiric Flatbow
req 8 mark
damage +15% in stance
Life steal 4
health regen -1

4)Hale Fire Staff
halves fire cast time 19%
reduces disease duration 20%
health +30

i figure #4 would be easier and no less profitable to sell just the hale head...is that true for any of the others? thanks again!