I left off saying I needed to remove the sump - this is why. It may not be obvious in the picture below if you don't know the insides of engines but at the bottom is the front part of the sump sans gasket, which is not a good thing.
So, how to go about removing the sump? The picture below is the front of the engine just being lifted as can be seen on the right as it starts to clear an engine mounting (trust me on this one!).
I had to get under the car, undo all the sump bolts, loosen the engine mounting nut on the offside to allow the engine to move up and remove the engine mounting under the engine completely in the end.
With a trolley jack under the front of the gearbox it was then possible to lift the engine and ......
wrestle the sump off - as can be seen here. Also just visible in the first photo is the spring from the chain tensioner - it's much more visible on the one below along with a bit of sump gasket. Neither of these would be good to have circulating in the engine so I am glad to have gone to the trouble of removing the sump. It has now had a good clean, along with the mating surfaces for the new gasket.
There was certainly plenty of sweat and toil in all this but the blood? See picture below