Thanks @Nef yes I stripped out the interior trims and seats at home, then removed engine and gearbox at my mates garage and transported the body to the body shop, Obviously any 32 year old car has got some rust lurking I have supplied panels accrued over the last six years, two new wings, a bonnet, sills, rear right boot pocket but also had to drop off a front left door and sunroof panel this week, going for a full colour change to San Marino Blue so a lot of work involved, can't wait to get it back and rebuild it.
Dual Mass Flywheel is straight forward, gearbox and clutch removal, lock the flywheel in position so the engine doesn't turn and undo the flywheel bolts, and remove.
Fitting make sure the dowels are in place and refit with new bolts, align and refit the clutch [if it is a self adjusting clutch you will need to reset it, if it is new it will come with a lock ring in place that you don't remove until it is bolted up. then refit the gearbox and other bits.
Gearbox & diff oils I have always used genuine BMW oils but you can go on the 'Opie Oils website' and look for equivalents.