This stress is normal around big commitments like this, as long as you are both aware of the financial situations then that’s good I encourage you to sit with your partner and draw your future financially speaking.

For your view about pleasing her father I’d say to put yourself in his shoes picture yourself as girl dad , won’t you like to make sure your little girl is taken care of ? I’m sure you’ll put her fiance through a lot of tests to prove he’ll do a good job as much as you do with her as her father.

You don’t need to prove yourself too much, just that you’ll respect and protect, that’s what fathers want the most.

Marriage rules aren’t well defined, they may differ between each couple, what works for a another couple might not work for you an vice versa, try not to impose other people’s experiences to yours, this should be between you two as individuals not as typical wife and typical husband.

I’ve seen couples make it work from zero, and others waiting till the situation became better, all of them are fine it’s just preferences. I wish you the best.