Hi All,Just want your 2 cents on whether or not it's worth fixing up my engine (M40). Recently it's started to smell of petrol especially when the car is stationary, this was narrowed down to worn out injector gaskets. I was told that the parts are cheap however it's a very tedious job hence labour will be high.Couple this with the all too familiar worn tappets, it spells of a top overhaul. I'm expecting all this to set me back about 2.5 to 3k. In view of that, would it be worthwhile just to transplant an M42 instead? (was told that's another 7k)Would appreciate your opinion on this, and also indicative prices if you have any. Many Thanks.CHeers!