Sold PHP, JS - Developer for creating Crypto charts

As I hired another developer and ended up wasting my money, I am now hiring another developer that has experience in PHP. It is very important that you are familiar with PHP, I expect you to be able to create stable code, and you do not rely on any frameworks such as React etc. You will be paid to create a styled chart through chartJS or whatever js library you are comfortable with. You will be using one of the major API's, and store the data inside a MySQL #, you must have experience with prepared statements. The chart will have a variety of buttons for displaying the data for different intervals, and the user will have the ability to choose a date by themself. The chart will display the current price, yesterdays price, pricechangepercentage in red/green depending on if its plus or minus, and the chart will show the date and price when hovering through it. The price will automatically update without having to refresh the page if a change has been made.

The code itself must not exceed the request limit for the API, and I am not interested in any software whatsoever for this solution. It all has to be webbased in PHP, JS, JQuery, CSS, Html, and MySQL.

Requirements:
* PHP
* HTML
* CSS
* JS
* jQuery
* MySQL

If this sounds like an interesting job offer, send me your hourly wage, and your expected delivery time for finishing the project. Keep in mind this has to be easily integrateable on top of existing PHP code. If I like your work process, and your finished results I may be hiring you full-time if you are interested in a stable income.