Client wants Biometric access and RFID, but has some fancy door locks that cannot be replaced with traditional zigbee door locks. What is the best way to integrate biometric access while preserving the look of a very very nice door(s) and handle set?

Client can have contractor install the system on the door and if required remove the entire door assembly to get wires fished to where they need to be...

control system is Control4 EA3 and will use the invixum biometric system!

Thanks!