Item Sets in a Low-Level Game

[ArcanistSupreme]

I'm trying to tweak some item sets so they are usable in an E6 campaign I am running. First, I'm looking at the Regalia of the Hero. How much would the cost be reduced if I ditched the marshal and bard bonuses? Maybe if/when they reach "epic" levels I was also thinking of introducing a way toned down version of the Raiment of the Stormwalker. I have some ideas on how to tune it down (mainly switching to activation rather than always on), but am open to other suggestions.

Are there any cool homebrew item sets out there?