Anyone know where I can just get the CAS Disk for an SR?

[turbo-travis]

I've been lowballing people trying to get their CAS for cheap but everyone wants $100+ for one. I have one but the disk inside was damaged during shipping. I don't have a pic of the disk but here is the AEM one used for the standalone ECU setups. Anyone have a part number for it from nissan?

This piece, but the OEM one
http://www.vems.co.uk/VEMSLoom/SR_CASDisk.jpg