The only set I could find was for £45 on Ebay and it looked pretty ropey from the photos. At this stage it might be worth checking out the RSOC. You have to pay to post on the forums, however, I did find out from the site that the Stuart Light is the MK5/6 RS2000 registrar. It seems he is also the chairman of the Exeter & East Devon RSOC. If click on the Local Groups section of the site and click on the marker close to Exeter you should be able to see his phone number and email address.