CS:GO MultiJackpot

Dear freelancers, I'd like to create a page that would work on such terms: User logs in with the steam platform. There is a price pot on the site that takes 50 items from people that bet (items from a game Counter Strike: Global Offensive) User can only put 10 items to the pot, overall value of the skins cannot be lower than 10$, item value would have to be gathered from steam market servers, there is an API for it. For every 0.1$ user gets 10 tickets, 10$ = 1000 tickets, when the pot gets filled with the 50 items, where we assume that everybody bet 10$ we have 50000 tickets, then a script would have to choose a random number from 1-50000, e.g. 12535 and the person that got that number wins the whole pot - 5% that would be our fee. The items don't have to be exact ones that were traded to the pot in this exact round they can be randomly picked from items that will be in the bot account(there also is a API for it but the script would have to choose closest value for the winnings from the items that would be in account inventory) There are almost ready JavaScripts to do that. Next turn erases the coins and pot items and it all starts again. Basically the page would work the same as [login to view URL], BUT IT CANNOT LOOK THE SAME. At the moment of adding this project the site is in maintenance but there you can see an example of what we are looking for. Expect English language written lawful terms of use policy included in the project from the freelancer.