Rear caliper for metal tech swingarm on tri z

[poolieZerUK]

Have a metaltech swingarm set up that has a banshee round carrier and caliper bracket.
I know that banshee stuff will do the job in terms of disc and sprocket hubs and I am getting the correct to suit but I dont have a caliper and am finding it difficult to source one this side of the pond.
What other calipers fit banshee with this setup?
Cheers in advance.

[3 Wheel Drive]

It's been a while since I've read this thread: http://www.3wheelerworld.com/showthread.php/16277-parts-that-inter-change-with-TRI-Z-250 I think the blaster or warrior calipers are the same as the tri z.

Last time I checked banshee calipers were all over eBay.