The drums have a couple of (M8?) threaded holes between the wheel studs. If the drums don't come off easily, run a couple of bolts into those threaded holes and the bolts will push the drums off.
Work on one side at a time so you can use the other side as a reference for how the springs are arranged.
If you're re-using your old shoes and drums, you shouldn't need to adjust the handbrake linkage or cables. If you're changing those parts, follow the workshop manual. An out of adjustment handbrake can mess up your braking.