G'day from Australia,
I am quite intersted in your project... but of coures this bid is just a placeholder so we cn discuss your project further. ( I am currently working on one main large project, but not sure how long it will last, so now looking for extra work to fill in if this project stops.)
I have 20+ years in R&D and manufacturing, and am familair with RFID, and NFC chipsets, and the various RF bits they need special attention paid to when desiging the PCB's etc. Let me know your skypeid, so we can chat more about your requirements and the circuit concept so I have more of an idea so I can quote more effectively.
Cheers,