There's 2 hidden in the bell housing. If you follow the joint between the block and bell housing you'll find 2 half round holes on the bottom. Turn the flywheel via the crank bolt and when it aligns with one of the holes, shine a torch up and you'll see each has a bolt inside.
Then there's the ones right up on the back, nearside. Quite high. If I recall there's a cap head and then a 13mm headed bolt located inbetween the casting webs that you'll need a cranked spanner to undo because of restricted access.