Hi I was thinking of some outfits like this:
its a more updated sith armour that would fit in nicely with the newer Zakuul stuff
and maybe also something along the lines of this:
https://www.artstation.com/artwork/8rmdQ
its a Darth Bane variation that could look pretty cool on a bigger male character as the obalisk armour in game already looks kinda daft on bigger guys IMO.
this also looks cool for more of a dark jedi, but maybe in a dark brown rather than black:
https://comicvine.gamespot.com/images/1300-5345105
and finally the rest of the darth nihlus armour please:
http://swfanon.wikia.com/wiki/Merraxen?file=Verslinden.JPG