New TTW Fire Mage seeking gear advice

Hello all!

i'm currently siting on ~5.62k GS and have completed my 4pc T10 (Head, Shoulders, Gloves, Legs). I have 96 EOFs right now and am looking to purchase https://wotlk.cavernoftime.com/item=50974 to replace my https://wotlk.cavernoftime.com/item=47603. Is this a good decision?

There's also https://wotlk.cavernoftime.com/item=50975 from the EOF vendor but I think Meteor Chaser's is better since it gives both haste and crit?

I understand https://wotlk.cavernoftime.com/item=50418 is the BIS for TTW mage but even though I've been PUG-ing ICC every week we always stop after fester/rotface. This means it's likely gonna take awhile before I have a chance to roll for that chest piece; hence I thought a an off part chest from the EOF vendor would be a good stand-in.

Current gear - https://armory.warmane.com/character...ecrown/summary (critiques are welcomed!)

Appreciate any inputs!