FIA has 2 levels which can be completed in approximately 6 months.
Hard to say, depends on which units you taken, you may take longer time on F4-F9 than F1-F3. In order to pass the exam, at least you need two weeks to read the study material and two weeks in doing past questions. I suggest practice past five years questions.
I started this week and I am planning to take the exam in December. Make sure to plan ahead: Check how many lectures you have to take, practice the questions, take the assessments.