This has been used for 2 years, It works on hedging,News......
u can use $500 minimum but $1000 more preferable it depends on the lot size.
No one can provide any kind of guarantee with robot in the world but i can assure u that it can be pending for few day because of bouncing the pair but u wont incur loss of a single dollar.
I dont provide any kind of information related to Live account but i can provide u a trial version for few weeks so that u can test it in ur demo account....