Im trying to do this for a client and only have a week now to do it.

Basically what he needs, is a section on the site, one page, where the user makes a purchase. Once they make the purchase they have 30 days access to another page with an online version of the newspaper they just subscribed for (its a newspaper company), and after 30 dyas they are restriced access to the page until they pay once more. HOW could i go about doing this, would it take more than a week, and could anyone possibly help me out? If not are there any pre-made scripts with these features in it i could work with? Thanks so much in advance guys MUCH appreciated.