Payment Gateway using JotForm and TrustCommerce, possible?

We have a client that want's customers to be able to go to their website to pay their bill.  There will be nothing on their website where users can see account balances, basically if they get a bill in the mail, they can just go online and put their information into a form along with the amount they would like to pay.  They have a merchant account with TrustCommerce and have it setup for all of their locations so they are set on using TrustCommerce.  Looking over the  documentation from TrustCommerce, it seems fairly similar to other payment gateways using API.  It will basically submit the form with a merchant id and password and in return will receive a token, which will then be submitted along with the form data.  Not sure if other do the same but they use a URL with a query string added on the end.

For example:

http://paymentgatwaytokenrequest.com?merchantid?password (not actual url)

Token is then returned

http://paymentgatewayprocess.com?[returnedtokengoeshere]?alongwithotherinfo?

Is this a possibility with Jotform?

If so, are there available "Payment Fields" that we can use or a form built already where we can plug in our info?

Or would we have to build from scratch?

TrustCommerceis not currently one of our supported payment processors.  We do not have a built in integration.  The following guide has a list of our currently offered payment processors:

https://www.jotform.com/help/47-Order-Form-Basics/

You can, however, send submission data via POST method using PHP and the Thank You settings:

https://www.jotform.com/help/213-Send-Submission-Data-via-POST-Method-Using-PHP-and-the-Thank-You-Settings

This would allow for setting up your own script to pass the data to TrueCommerce.  Since this is not one of our supported payment processors, this is not something we would be able to help with from our end.