Hi Ian,
Happy Xmas to you too sir. I too used to do a lot of work on cars, but don't really have the facilities any more. I got my old trolley jack out last year after a long period of non use (my IS200 doesn't really go wrong:-)), and all the seals had gone so it went to the dump. I'm 57 and also stubborn but I think I'll give it to a local indy to do the cam belt and also it needs ARB bushes, so I'll also get the drop links done at the same time as they have to come off to do the bushes. The IS is now on 123k and feels fantastic. No intention of changing it for a while yet. I still love the sound system, iPod connection and 6000 tracks at my fingertips.
It sounds like you live in a nice part of Essex - whereabouts on the coast are you? I'm just outside Epping.
Be well,
Paul