Dear Sir,
Thank you for your project. I'm very happy to work with you on this project. I ever customize an opensource CRM system call FMStartingPoint ([login to view URL]) from about 4, 5 customers and mapping with your requirement, i can customize this code to have all features which you want. Also, if you want to access from outside Internet to FileMaker server, your Mac Server need to have an static IP so you can access from outsite internet. Don't worry about the deadline, i'm sure i will done in 16 days and you have 5 days to testing all of it.
Also, during the development, i will update the function each 2, 3 days so you can testing
Hope to have a change to work with you on this project.
Best regards,
Thanh Truong