Leif - Welcome! As I am not currently your DM in any game I would love to have you aboard.
A druid finese fighter, hmm... did you know that
Flame Blade might be able to be used with Weapon Finese? I will look into that to, but since it says the blade is immaterial and doesn't use STR for damage it should count as a light weapon (don't you think), So you could be using that in hand to hand and getting DEX mods to hit on a fire touch attack.
And if you take the Fire domain as your Nature Bond you would get to chuck out a fireball once a day as a domain spell.
Food for thought, I will be around to help if you need me.
HM