Hiho,
I have a 10 years experience working as a technician on aircraft and simulators. I also have 10 years experience as a computer systems engineer working on software, hardware and system integration. I have been using atmel controllers for about 8 years and the arduino for over 2 years.
I recently completed an arduino based custom design, build and install of 35 embedded vehicle systems for fleet monitoring. Those systems have been running now for about 5 months with no failures and a very happy customer. Furthermore all my current freelance projects involve Arduinos.
I have a competent workshop with test equipment for developement, testing and maintenance as well as the ability to manufacture small numbers of units. I have a number of Arduinos and a range of shields which allows me to test software before delivery.
I am interested in your project for its diverse nature. It seems that there is significant hardware integration as well software issues for both the microcontroller system and the web service. It's a real mixed bag of technologies, all of which I've got experience with.
I'd like to discuss the scope and technical challenges of this project.
Regards
FieldingBlue