as for your 1st post, you can submit proof of remittances or receipts from your relatives / family or other sources of income aside from your salary. but if you will declare in the application form that you will pay for your own airfare be sure there are enough funds in your account. to play safe or you don't want them to look into your financial account, just submit a bank certificate stating you have money in the bank for your airfare (say 50k-100k)
btw, how long is the duration of your course?