Accept any payment amount on WordPress using Paypal backend

Hello all, I want my customers to be able to go to my site and pay their Quickbooks invoice they receive each month. I found this plugin… Quick Paypal Payments… and it is very nice, simple and works… however I want my customer to stay on my site and input their credit card information vs. being taken to the Paypal site and seeing all of the confusing options to make a payment… Most of my customers do not have Paypal, they just want to pay the amount they owe + a 3% processing fee (cause it’s a credit card) and be done with their day… Also I’d like to be able to possibly have them login to my site and their credit card and other info is stored and they can easily enter invoice #, payment amount, select CC on file and submit payment… THAT is the ultimate method I’d like to be able to use.

I have Paypal Payments Pro so can easily integrate into a plugin that does all of this. I’m also willing to pay for plugin.