Update number 2.
The timing belt is mostly done just need to put the second part of the engine mount back and header tank. I really struggled removing and refitting the engine mount to the block. The bottom cover was in the way, so I had to undo the mount, leave it floating and then remove the cover, which wouldn't be too bad if It wasn't for the top back torx bolt on the cover, getting that bolt back in was not fun at all (lots of swearing
).
So while I had room with the engine not secured to the chassis I thought it would be a good time to do the thermostat. I've only got the big one at the minute so thought I might as well do it. I would have liked to have done the inline ones first to see if that would have sorted it and save some work as well. I spotted the one on top of the gearbox easily, but couldn't see the other inline one at all. I will have a proper look later once I get the turbo pipe out of the way.
With regards to my oil leak, there's pools of oil on top of the gearbox and quite a lot blown back under the car, but around the PCV looks dry and around the vac pump looks fairly dry. So I'm wondering if the leak has been fixed and they just didn't clean leaked oil away.
I think my first course of action is to clean it all off and then see if I can spot where it's coming from properly.
Again many thanks to everyone for all the input.