Hi,
I worked on similar projects.
Reading Gmail, extracting data in certain format, -you have to have the exact format, no problem if there are 5 or 10 different format-
extract the bet, league, sport, teams, odds , stake etc...
match same sport/team/market on the API, check if odds are still same.
Place the bet viq the API.
I worked on nearly ALL the API, pinnacle, ps38, sportmarket, dynamicodds and of course betfair-I have developped an API for betfair that doesnt require the paid appkey-.
I developped my own API of certain bookies.
Im confident that I can deliver the most robust solution, I can garantee you full satisfaction.
Of course the bets will be placed as fast as possible, I can garantee a sub second solution.
Hope to work for you soo.