I've been looking myself at http://www.puppetswar.eu
They've got G-team heads, Elf natural heads and Observer heads which might make really good Kabalite Warrior heads with some minor conversions and a solid paint job. I'm still on the fence though and haven't bought any. So I have no examples for you.
G-team could also be nice for alternate Scourge heads.
Archon of the kabal of The Bleeding Hand.
Member of local Dutch community: http://www.sweetlakesentinels.nl