Its a tall task. Especially concidering trial and error is a part of learning how to brew cider. Unlike beer, your ingredient varry a great deal, so the finished product will varry a great deal. 6 months will give you a trial brew and one shot at a good final brew. If your trial brew is good then it can age until your wedding too, but then you get two different brews. Aging is important with cider.
How many bottles will you need? I get 11 bottle/gallon of brew.
What is your favorite commercial cider? Do you like sweet or dry?
Try this site for an excelent overview of the process.