A quick update , I've not done a massive amount of work but I have sanded down some more of the discs. They are starting to look very nice indeed.
Also I recieved a new aluminium knob from maplins , the old one had a bit of glue on from a previous mod so i ordered a new one, maplins messed up and sent the wrong sized one to start off with , but they fixed the problem and sent out a new one telling me to keep the old one so thumbs up to maplins after sales support !
The piccies (Click on them for full sized shots):