The new CR2 SE kit will hopefully be ready in the next 2-3 weeks and will include the new motorplate & idler kit along with the xd front towers, all in red carbon. The standard black CR2 LHD kits are in stock, and you could add the black version of the motorplate & idler kit as soon as its ready in around 2-3 weeks.
The motor plate & idler kit will be around £20 and will include all the items needed including the idler gear, bearings, idler post, fasteners and the carbon fibre motor plate.
Hope that helps