I was in a similar situation not too long ago. I too had alch/herb leveling all the way to 70, and used the Hallowed set for the longest time before I decided to drop alch for talioring. Hallowed isnt bad but the PMC set is amazing, better than tier 4 drops. Also you might look into the Whitemend hood and pants, also amazing items for not having to get 25 people to jump through hoops to kill some boss.
So in my opinion, I would drop one for tailoring. Which one is up to you, I kept herbs for the money issue, Herbs sell great on my server. Not to mention that you can use the fel lotus you find to get an guildie to make flasks for you. Alch is not a bad option either if you have gotten some discoveries. Just my two cents :)