Build me a website

I have an idea to create a website which will be essentially a gambling website (with slot machines, which you will have to design). But people won't use actually money. They be using coins, to explain there's a videogame called "Fifa" where people use virtual in game coins to purchase virtual cards of real life footballers which they can use in the acutal game. My plan is to design slot machines which will allow people to essentially gameble these coins. For example people can pay £10 for 100,000 coins which they can gamble on my site.