Opps, I posted in the wrong place. If any mods can move this it would be great. Thanks
So, I put everything back together, put in a new filter and (cheap) oil then started it up. It fires right up, no problem and runs with no check engine light coming on. Here are a couple of vids, the first startup and the second after it's been idling for 5 mins.
Start up
After five mins running
Note the clean area, I've just gone back after another 10 mins and oil has seeped out between the engine and trans and down to that point again.
So now I assume it's either the RMS or IMS bearing. Either way, it's a trans out job to see which and fix it.