Hi,
I, Ankit Moteriya M.Tech. in Embedded Systems from Nirma University, India. I completed my final year project in AMTECH Electronics (IND) Ltd., Gandhinagar, India for 1 year of time, I worked project entitled "GSM/GPRS based control card for industrial products." I made complete product based for that. Main purpose of the product is, it could be worked as GSM/GPRS gateway for MODBUS-RTU protocol. I use Renesas micro-controller and SIM900 quad-band GSM/GPRS module. I made complete software for that. I used AT Command in software, I2C serial interface with memory chip, configure ADC channel for input voltage detection.
I also worked with Bluetooth module for making audio headset configuration. So I have some experience with that also.
I think I have all the capability to work in your project. Because I have experienced of 1 year with all your requirements. And I give my all the efforts to complete this project.