I just finished Tonko: Ichi and Utsusemi: Ichi. I turned in 196 Yag Necklaces and 9 Zinc and was able to unlock the quests. I had a PLD75 linkshell buddy help get me through it in Sea Serpent Grotto. It was fortunate for me to have the help cause I also had opened up the quest "An Undying Pledge". My friend battled the Glyryvilu while I did best I could to heal him. I was BST34/WHM17 at the time. Anyway he killed it and I got the Light Buckler. That will come in handy when I get my BST to 40.
It was a lot more fun questing for Utsusemi: Ichi than buying it at the auction.