I will change the intercooler on my No:3 very soon, getting fed up with limp mode. The one from my No:1 is ok, so it will go in when I have some time to do it. No:1 is waiting for the one from Timmus, together with some silicone hoses.
Regarding the anti vibration shaft chain, I had a good look at it on my first car when the oil sump was off for repair and it did not show any signs of wear (I know it's almost impossible to check only visually, but my car has a full service history-still not a guarantee). I have a spare engine that will slowly be checked and rebuilt to a very high standard and will be a stand by if anything goes wrong as I have decided to keep the little thing indefenately, it's so good to me.
Regards,
Boris