SAO - Integrity Knight

[Hashira]

Heya, this isn't necessarily a model request but rather where would I be able to find the parts necessary to create a similar figure to the Integrity Knights from Sword Art Online : Alicization
I have a little bit of experience in Frankenstein/Kitbash and would like to work on such a model

For reference:

 

This is what I have so far



Looking for advice and alternative models that could be used to achieve closest to the above references
Specifically a male body and shoulder-pads that can be re-textured