i would suggest for the second ring slot the Ring of Deceit since it gives you cha+8 bluff +20, diplo +20,haggle +20, and perform +20. when fully upgraded has a yellow and colorless slot.this would free up the neck spot for the GS necklace again. with the colorless slot you can also slot in a +7 stat augment like dex or wichever would work the best.
Thats a good choice. One of many. I am just happy that I could work out a nice equipment set that allows for a situational ring slot and a bit more freedom to swap equipment. Very nice advantage that comes with the U17 changes to equipment.