how to change class

[MaelstorM]

So i just play this game again, crossworld orcs of the march

played as warrior on hard, full kiting now in elon & unlocked reha nameless shetera with almost no battle

due to items i have access i am thinking to change class, there are
ancient amulet on verona,
chaos dragon, death star, turn back time spells from dug chest,
dragons & their eggs,
engineer badge in debir old castle,
plus demetrius+bow, black helmet & knight on nameless ,
dracorix (-20% fire dragon lds) , & heart of the dragon (another -lds on dragons)

looking at this fact, I really want to play this save game multiple times as
- whatever class + droid squad
- warrior + orc
- warrior + demon
- paladin + dragon
- mage + dragon
- mage + demon

the question is:
how do I either
- use cheat codes to change class
- edit hero.txt / something with db_editor to change class
- hex edit save file http://www.shikadi.net/moddingwiki/King%27s_Bounty_Saved_game_Format
?

ps : no post should bear the lines 'create new game, scan , repeat'