I spent close to three months on my FI course, which may appear to be overdoing it, but it didn't feel like it at the time. Four days a week, flying on two of those and long briefings and other ground-bound stuff on the other two. The minimum is 30 hours of flying and this course you're talking about appears to think that you can squeeze this into one week-long cross country (or something like that). If you want to do this properly, find another school!