Seeing this kinda situation, you must first ask yourself 2
questions.
1st question is how much do you love her? Are you willing to marry
her and spend the rest of your life with her having this kind of
arrangment? You must think seriously. Since you are able to list
out the above, it seems like you are having some doubts already and
realise the dangers that you may regret one day after
marriage.
2nd question is how much does she loves you? Eventhough you love
for her maybe strong and true, but you must also make sure it is
well reciprocrate. This question you will be able to answer
yourself directly and be honest with yourself. IMHO, when a woman
loves you, she will take half of your list because she will not
want you to stress out in work/emotion. If she's as you had said,
she'll pay for her stuff herself and will keep all your money and
give you $5 everyday, most probably she loves herself more. Don't
be surprise that you may not even get your $5 daily
allowance.
It may sound bad but IMHO, you must think carefully. The ball is in
your court.