Hi, I have read your requirement carefully.
I'm interesting in your project, because I have ever done similar you need.
Please have a look on my efforts:
https://www.freelancer.com/projects/mobile-phone/Android-NFC-NTAG-programming-tool/
I am very familiar with NXP NFC tags, such as MIFAIR Classic, Ultralight EV1, C, NTAG 213, 215, 216, etc.
I am sure I can give a perfect result to you on time.
Hope to discuss with you more detail via PM.
Best regards,
Peng