First rear bearing in! I used some wheel bearing grease to lube the arm, froze the bearing, got it all lined up with Greg's tool and started cranking. I needed a couple taps with a hammer to get it started straight but once it was going, there was no problem.
Then a couple bolts and the backing plate (if that is what its called) was on.
Got wiser by doing the next step twice.

Trick is to assemble the e-brake before putting it on the arm.
And Done!! I'll leave the hub and axle for after the arm is back on the car.