Well got gearbox out and completely stripped.
Overall not too bad condition inside apart from:-
Direct and reverse clutch packs showing signs of overheating.
2nd coast clutch cage slightly worn (but serviceable)
Dodgy connector on input speed sensor (mainly cuz i broke the clip!!!)
accumulator 1 spring broken into 4 pieces, may explain the clutches overheating.
Have overhauled the valve pack but awaiting a bush to be made for the broken one as there is a little wear in the casting.
Have overhauled the oil pump and fitted new front end oil seal and torque convertor bush.
Replaced rear gasket and started re-fitting parts into the casing.
Found a superb supplier of all things Auto -
www.jpats.co.uk who are not that far from me. They are refurbishing the torque convertor for me and should have it back to me for tuesday.
They have suppled all the friction plates, pistonseals, gasket kit, filter and a secondary oil cooler.
Total cost so far approx £500.
Bit of a saving from £4000 from BMW.....
Will update again soon and poss post some piccies if anyone is interested..
Cheers