I recommend you take the time to hit Tier 2 on this for the Bonecraft Escutcheon, as I went 0/24 when Tier 1, but 5/10 on Tier 2.
Leather 74 + Tanner's Torque / Gloves + Advanced Support = 80
Leather 75 + Tanner's Torque + Advanced Support = 80
Granted this will delevel your bone to 105/106.
Releveling Bone to 110 will cost less gil compared to the cost of the mats to do this as Tier 1.
Also, Wiki says sub is 41, BG says 49; I trusted the latter.