Need help making custom checkout process

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
Ok here is what I need:

I will be buying this theme:

I will be offering recurring services: Bronze, Silver and Gold packages.

I also want to give the customer option to pay monthly or pay the whole year at a discount which is recurring.

Here is what I want my checkout process to look like:

Packages (where they choose bronze, gold or silver package):

Checkout Process: (where they choose to pay monthly or yearly)

I also need this to be connected to my paypal pro account.

Do i need to purchase anything extra for this to be possible? like whmcs or something like that? Please let me know. I am new to this web design stuff.

Best Regards,

Skills required:
Graphic Design, HTML, PHP, Website Design
Hire nursedaisy
Project posted by:
nursedaisy United States
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