well I dont know how much thc your going to pull from immature male plants I have read you r lucky to get a 10% yield on mature buds so a male plant that is immature I would see if it's worth it..
1 beer will give you more of a buzz than what you will get from ISO an immature male plant, gioua is right it is not woth it unless you require ISO extraction practise; and there are lot's of threads explaining what you will need and how to preform ISO extraction.
Here is one of the better threads I have read that discusses ISO extraction