Thanks BB,

I gave the running gear a degrease and wire brush before I started to pull the gearing apart which is why it looks to be a bit dry. The first bearing I've seen behind the clutch sprocket seems to be in reasonable nick so I'm not sure whether it was regularly serviced and bearings were replaced etc but I will keep an eye out on the rest to soo what condition they are in. From my untrained eye the clutch cork, whilst looking a little burnt seems to have quite a bit of meat left on it. Is it acceptable to give it a little clean up with sandpaper and also rough up the metal mating face a little to get rid of the smooth surface to reduce the clutch slipping?
The catcher is in really bad condition - I'm going to try and channel my sheetmetal tradesman days and see if I can't straighten it up and rework it but I'd imagine it would need a 2nd hand replacement or a new one therefore I may not have a matching catcher for it which gives me more reason to give it a freshen up.
Even if when I pull the engine off and the rails aren't showing signs of cracking is it worth stiffening the rails up? I've had a good look around and there doesn't seem to be any signs of fatigue but I can't get a good look under it yet.
In our discussions BB you mentioned about a paint formula from Protec that you had - I found the Richard Jones Green screenshot in one of the threads - Is this what you were talking about?
Thanks,
Brew