Code some software and link it to the appropriate places using Api's/php

Task List: To Create a leaderboard page that fits in with the theme, that takes information from a client to the site and posts a full list of players. (Client has an api and a few premade codes for this kind of thing already) To create a 0-100 betting system where the user can choose a number and over/under and depending on number a multiplier is awarded for winning. references can be provided and source codes might be available online this need to be linked to the site currency we have in place so users can win/lose currency. buttons for this too. This will feature in html and css and will go along one of the html borders of our client. To create a code that allows for transfer of points from the client to our site and vice versa. (Mycred plugin for wordpress) To create a cashier button in html/css that allows the user to deposit/withdraw between the site and the client. If anyone is familiar with Poker Mavens, this is the client i am talking about.