Do you mean the H9 one that was done by him? If you are on a budget then go shop at places like United Hobbies for ESC/motor and maybe batts. Do not save on batts unless your set up is not power hungry. The cheap batts never last. Example ... if the cheap China batt is rated for like 25C then you are best keeping them in the 17C range. I used many cheap ones that are so called trusted brands in forums, they all bloat when pushed to the limits.
I am running some 'cheap' China motors/ESC to test, they are working fine. I got that in my 80" CAP 232. Since I am not looking for high performance I can get away with it.
For batts I am using the branded stuff of course.