Build a Website

This is a pretty hard project but here it goes: I want it to be like this. So its based on this webpage: [login to view URL] Basically it loads your inventory from: [login to view URL] you then bet and click which skins/items and you want to put into bet and what team you place the skins onto win there is a % bets for each team and there is a return. for example if i bet a 20 dollar skin on a team i get a $7.00 return worth of skins and keep the skin i betted if the team i bet on won i also want the odds not to be the great so i can keep some of the skins after each game is done. The bot then sends you a trade offer to collect the skins. When the game is over and one side is victorious. The person who bet on that team wins and gets the skins from the bot.