Esker
Hero
Thank you for this suggestion.
Only thing is you get CON saves from both sorcerer and fighter.
Yeah, definitely a downside of the Cleric / Wizard route as I said. If you're going vuman for war caster though (which seems pretty important when you're a wizard with a shield and a weapon, since without it you can't use the shield spell) the concentration problem is mitigated: you'll be rolling +4 with advantage at the lowest levels, where you're unlikely to take more than 20 damage from a single source (if you're taking that kind of damage at those levels you have bigger problems than losing concentration). That's gives you only a 1 in 16 chance of losing concentration even without proficiency. If your concentration spell at those levels is shield of faith (which you wouldn't have as a fighter), it helps even more.
I think Cleric vs Fighter largely comes down to whether you want more spell slots and magic buffs or whether you want the fighting style.