I'm hoping I can use my Kings in exactly the same way. Some of the more popular channels are already using Gal Vorbak (40mm) as Possessed so I'm hoping they know something I dont.
I'll get you a comparison pic.
I don't have the best comparison as mine are on masonry but I think they'd be fine. Cool concept having some for contrast.
*Edit: moved things around to try and give a better idea