Build a Website

I'm looking for someone willing to build a small CSGO betting site. I'd like the site to revolve around a coin toss, where a player can deposit CSGO skins to a steam bot (using steam api) and create a coin flip that another player may join by depositing the same amount of skins in value with a leeway of $1. Once both players have deposited skins they will bot be sent to their coin flip to watch it flip. The coin would be provably fair and pick a player to win the round and give them all the skins both players deposited. If the coin flip meets either of these requirements: 5+ items and/or deposited skins value more than $10 then I'd like the bot to recognise this and keep 1 item from the deposited items that is the closest to 10% of the pot, which will be sent to another bot to store. I will also require two bots that are able to trade with needing mobile confirmation. Both will need to be able to trade with players (Deposits and winnings) as well as hold and store taxed items which I can move when I need to. I can discuss any further details about the websites design when we start speaking.