Hi Jays, if the cylinder has seized then the drums will be hard to get off. I had this on Rosie. You need a piece of hard wood on edge of drum and firm whacks with mallet. Alternating each side, it should come off. Probably best to get new cylinder at factory in preparation, it's bound to be rusted up and seized.

Adrian

Buggered Off, to a modern none leaky car, heart's still ticking