If you can limit it in some way, other than extremely rare cases (maat's cap) to just weapon slots. I would not even attempt or care about trying to track armor augments.
It's not even reasonable to try to assign a value to anything that isn't static.
Honestly, there is no difference between a rank 1 Chango and a rank 15 chango. You really don't need to check what the augment is, just that one exists. That they have gained the ability to augment.
(And no I don't think anything strictly bought, divergance weapons, +2 necks deserve a value of any kind)