MDB 100 Upgrade. Specifically add cashless payment device MDB code to existing PIC code.

I'm looking for a freelancer to help me with an upgrade of my MDB 100 system. Specifically, I need to add a cashless payment device MDB code to an existing PIC code. The current PIC code version is PIC16F1947, the code is written in CCS PIC 'C', but I don't have the MDB code for the cashless payment device. I do need assistance with that. It is possible that I may require a working prototype before the completion of the upgrade, but that is yet to be determined. So, if you have experience in this area and would be willing to lend your services, please contact me. Thank you for your interest!