I am not a Sabine expert, but we have a couple people around here who are. Coronae just finished her Season 2 build and might be able to give you some good input for sourcing things like boots and gloves. I'll bump her to come take a look at your thread to give you a hand.
And AliyaJ just finished her Season 3 build. I think it was approved. You can find her thread her and PM her for more info.
AliyaJ's S3 SabineAlso, if you haven't seen it, the S3 CRLs for Sabine's action gear was just published.
Sabine action gear S3. It might be helpful if you can access it.
If not let me know, I'll copy and paste them here for you.