I dont see any of those to be significantly valueable.
#4 has dualleech and nice life, so it might be worth 1-3 ists. But the lack of ar hurts ALOT!
#5 I dont have any experience at all with the crafted caster belts.
#1 -- frw/fhr are nice add, but need at leat one more high rez ( and Crez higher ).So its not usefull
#2 -- even lvl req is low, not usefull
#3 -- not usefull
#4 -- low ar & low ll/ml ( for higher than 49 lvl have to be 6/6+ and 100+ ar with some nice stat add...life is solid ), not usefull
#5 -- need better fcr/str/mana stats arach > this