I don't understand some details of the redaction. Are you going to pay money from your pocket to buy the options or you are going to have a discount of your salary in Exchange of the options?
True; also very standard is cashless exercise, where you "pay" for your options using some of the optioned stock itself (really, taking fewer shares in a type of margin purchase). [1]
[1] See, e.g., http://www.investopedia.com/terms/c/cashlessexercise.asp
Maybe you are thinking of a restricted stock grant?