Very Basic Digital Download Site

Hi i need someone who can make me a very simple site that sells accounts for a video game, what it would need: 2. A very basic Product page and a user input for the amount of accounts, with a basic price calculation per account. for example user buys 3 accounts the total price updates [login to view URL] user would chose a payment option and gets redirected to the payment, after the payment is received user gets the log in details of his accounts, in his email 4.i would need some kind of simple admin panel were i can add accounts to the stock [login to view URL] a account is purchased it should be removed from the current stock so it don't gets sold multiple times. am providing some pictures of a minimalist look i would like (this is an example of the looks/layout)