I can mine this site for you like no one else :)
I have scraped odds in real time for more than three years from all major online bookmakers ( William Hill, Bet 365, Stan James, etc ) so I guess this is what recommends me.
For the rest of details please contact me and lets see how I can help you fulfill your goal.
I will be using Java for coding the scraper ( miner ) and PHP and/or Javascript for whatever UI I will have to do.
The 150 price is for the scraper and a minimal UI that will give you access to the mined data. If you want some fancy UI with features like filtering, responsiveness and user management we will discuss.
Thanks,
screab