Hi Gents finally got to the bottom of the oil in the clutch problem there is in fact another seal which fits in the back of the slave cylinder but they don't tell you about that one, so we hauled the box out for the this time and fitted the seal, the save cylinder does not come with any seals despite being £1462.00 for the clutch kit why wouldn't you throw in the seals, oh no much better to not say anything and then charge them out as extra, I thought Ford were masters of taking the p..s but these people are a whole new level.
I managed to get an updated version of the same parts system they use which is where I found the missing seal and have posted the diagrams for any other poor soul who might not want to fall down the same hole.