New Payment Gateway Request: ACH Direct (aka Payments Gateway)

We are in need of a payment gateway for ACH Direct aka "Payments Gateway".
Their Dev section is located here: http://www.paymentsgateway.com/developerDocumentation/Introduction.aspx

They have some existing 3rd party plugins that can be viewed here:
http://www.paymentsgateway.com/community/3rdPartyModules.aspx

We'd be willing to participate in (or front) the development, perhaps in exchange from a month or two of subscription?