help me build an ias zon

ok..i'm aiming for the 200 ias = 7 fps..i use:

shael windforce = 40 ias
15 ias mavina helm = 45 ias
bugged valor = 25 ias or shaft w/ jewel = 15 ias
bugged string = 25 ias
gloves = 20 ias

total = 155 ias = 7.5 fps

what items other items should i wear to get 200 ias
my inv. is filled w/ 100 spdc so i got enough dmg
should i go for 160/60 ias...or should i get a different bow?
oh yea..i'm a cow killin/rushing bowazon