3.2 I would vote for size M.
3.3 A little bit of plot wouldn't hurt:) and regarding help... well... I could try, however, I can't say that I'm a master of writing texts...:o
3.5 The castle could be Sylvan, and the hero isn't that important. Nimus is a bit like Sobchak, if the map is set in Heroes of Might and Magic V.
;)
Except the ones we've made