Can MCA support JPOS drivers? Or can it be integrated together to function as one entity?
It will probably be specific to the card reader on each MCA device. It will definitely be operating outside of the MCA SDK/PD. You can certainly create applications which use the RFID reader to read cards supported by a specific reader, but we have no idea which OEM offerings incorporate the card readers you would need, and we haven't done any work with this in order to help you figure it out.
You can install the JPOS drivers and give it a try but we have not done any work with it and would not be able to provide much if any support for it.