I was involved in the coding of a pre-match arbitrage software and have detailed knowledge of the subject, including but not limited to the backend scraping, the normlization/canonization of betting markets, arbitrage calculations, and the frontend presentation. Maybe I can deliver what you need, but from your project description is remains unclear what you actually want to achieve. Unfortunately I can not disclose right now the arbitrage product I was involved with. Anyway, if you please specify in more detail what you need I could make a serious estimation of the project costs.
If you need a software that finds unique arbitrage opportunities I think the key feature would be to include exactly the bookmakers you are interested in and go for markets that are maybe a bit off the normal bunch . Otherwise you probably end up finding the same arbs as the available commercial software.
Some Questions:
- How much comfort do you require? Is it enough to present the arbs in generalized format and leave the navigation to the bookies pages to you (the user)?
- Is that meant to be used by only you, or do you want to sell this software?
- Is this about live betting or pre-match or both?
General notes:
for 5000 € it will not be possible to develop a product that can play in the league of commercial arbitrage software - I know what I am talking about. However, if you can live with less comfort and if you limit yourself to the bookies that you really need, then it might be possible.