1) you need saving if its fiancee visa
2) you need 6 months payslip
3) on fiancee visa cant recourse to public funds,if your parents allow you both 2 stay there,father need to make a letter for the ECO that his no objection living both of you on his house
1)you will need to do budget statment if you can take care of her,obviously she isnt allowed to work until you didnt get marry
a) i will post some link for you to read more on applying fiancee/spouse visa so you will know at least how much
b)Yes,embassy can check a single details to both of you,especially to you
c)at least as i have said 6 months payslip and enough savings....
d)prepare 100k php 50k for the visa fee and if granted airfare 50k and bits of documents
Good luck ,wish u all the best under the sun