Took the plunge and started cleaning the engine etc. Not a full rebuild by any means but its suprising how a little bit of cleaning and renewing basics, can make things look better. Obviously new gaskets but also repainting , and just cleaning works wonders. Slightly worried abount the replacement head I purchased ages ago.Quite a lot was skimmed off the head and I am running with dommed top pistons, therefore the compression may be too high. We shall see! Spare parts are not particularly expensive but judging by my Bank balance recently, they soon add up.