> I did not discover if there's any way to return you to No'hanz' form.
You can morph back with the morph trap. The trap in general feels like too much of a gamble though, since it seemed relatively rare during my games.
> I left the game with one big wish: that there was some means to get information about the different monsters - HP, attacks, special properties, other than just smacking into them.
There's some information in the "Spoilers" (click "Tips" then "Spoilers"), but it doesn't include full details. The game could really benefit from a farlook/examine command which gives the same information in-game.