Hi Andy J, I am in the process of stripping and cleaning a very old '35, a 'red head' exactly like the one I bought from 308 Holloway Road in April / May 1961. Yes, I did regret selling it many years ago, however, this one was gummed solid both inside and out. I gave it a 20 minute boiling in a good litre of water dosed with about a tablespoon of the wifes 'non bio' wash powder, which took off all of the outside hardened castor oil crud. It did this without discolouring the finish on the engine at all and all the screws came out without any fight too. I too used a carefully applied heat gun to free up the Head and Backplate, together with the Cylinder Liner and finally the Piston and Con Rod. The Carb' (or should I say 'barrel throttle', - this was the first British production R/C engine after all) came out easily. So, yes Andy if you still have those fibre head gaskets, I would much like a couple please. Contact me via the moderator I think, Phil W.