Asterisk (trixbox 2.6) Avantfax & Hylafax integration

I need a professional that has experience working with asterisk, freepbx, and trixbox to remotely install and configure an avantfax install on the same server. Upon completion of the install faxes must be carried over one or all of our SIP trunks for both outbound and inbound faxing. This server is SIP only (No copper lines). All work will be coordinated with a technician that will open the necessary ports in the firewall for a service provider to perform this work remotely. All bidders should cite specific relevant experience to this type of integration. The bid will be paid from escrow once the integration, maintenance, administration, and debug session has been completed / demonstrated on our server.