I've built a surebet / arbitration bet bot before, you can see the feedback for that project on my profile if you want.
I understand you want the bot to bet on over/under markets and do so automatically, correct?
I can adapt some parts of the bot I already have. It is very very fast, much faster than any human can be.
I didn't understand what you meant about the in play odds. Do you want the bot the bet when the game turns in play too?
I would like to do this project for you, so any question you have just let me know. Looking forward to discuss this project better with you.
Thanks,
João