Requesting for the Paddle Payment Gateway Extension

Dear Sir,
I like your plugin but can not use it because I can not use the Paddle.com Payment gateway with your invoicing system. Suppose I shared this invoice with my client (https://damoka.net/myinvoices/invoice-001/), and he will click the button to Pay for the invoice with Paddle. Once the payment is made using Paddle, then the invoice should be marked as Paid.
If you can integrate this, then please let me know. I really need this gateway. Here is Paddle Sandbox: https://sandbox-vendors.paddle.com/
If you make this plugin, you may also sell it as a new extension. I will be your first buyer of the Paddle extension.
I am looking for hearing from you.

Thanks
Arif