200 Stamina is plenty, even if you reach that through an enchantment. You can always put more in later if you feel like you need it, or once you get Extra Effect get more enchants for it.
As for staves I found plenty in mage dungeons and forts, just remember to search all the corpses - even novice mages quite frequently possess basic staves like the Familiar ones. And don't be afraid to buy some from Court Wizards with all your money - just make sure it's after you get the Haggling perk.
200 Stamina is plenty, even if you reach that through an enchantment. You can always put more in later if you feel like you need it, or once you get Extra Effect get more enchants for it.
As for staves I found plenty in mage dungeons and forts, just remember to search all the corpses - even novice mages quite frequently possess basic staves like the Familiar ones. And don't be afraid to buy some from Court Wizards with all your money - just make sure it's after you get the Haggling perk.