I kinda need a photo to understand where you are stuck - but you mentioned the possibility of a brake shoe sticking so I'll assume you have one brake drum that won't come off? (I don't understand what thread has gone, and you mention the "bolts through the holes" - but you can't see them until the drum is off.)
You removed the one small philips screw (or is it 2 - can't remember?)
Then, the trick I found (one was very stubborn) was to hit the edge of the drum (you have to be careful that it's the edge of the main drum you are hitting and not the thin back plate right next to it) hard with a rubber mallet - do this in various places, going round in a circle. I really had to thump it a fair few times. Had a break. Tried again, then all of a sudden it fell off.
Make sure you handbrake cable is slack (I found no need to adjust or undo any of the braking).
To free the drive shafts I did the same - rubber mallet on the edge of the hub - hitting it sideways, not towards the diff, in a circle. it'#s about shocking the splines free.
I would not put a metal mallet any where near any of it. Your drum is cast so it is brittle.
A few links that i used:
http://z7.invisionfr...?showtopic=2526
http://www.locostbui...d.php?tid=99414 (click the link until the page works - it does eventually)
http://www.locostbui....php?tid=118931
http://streetrodstuf...r_End/index.php
http://www.turbospor...d-tips-and-info
http://locostbuilder....php?tid=106579
http://www.englishdiff.co.uk/