Build a Website using GoDaddy.com

I have started to work on my website but need someone to only input create a page that allows purchasers to pay with PayPal that is automated. I am using GoDaddy's own store plugins, so you must be familiar with their plugin technology. I will do the rest for the website. You need to create a subpage after the Home Page where there will be a total of 30 folders. Each folder with have a name such as A, B, C and so on and after Z, then go to AA, BB etc. I will later put in digital files such as MP3 and RTF and ASCII files in each folder. The customer comes to the home page and if they want to purchase from Folder A, they must pay $2.50 first, and when PayPay acknowledges that payment has been made, the customer is given a link to access the folder and only that folder. They have access to the file in that folder to download. If they want the contents of Folder D, the same procedure. If they want contents of Folders A, B, C, D and E at one time they go to Folder 1Z, that would have all the files that are in each of Folders A, B, C, D and E, and pay $12.50. You can go to [login to view URL] to take a look at the design I am now just creating. I need a quote for using the Store plugin to activate and test out PayPal for payment and successfully download choice of folders.