it's not something that you can easily implemented it.
Indeed, there are lots of things to consider before you can decide to put up this types of business.
it requires you different thing to have working exchanges, you can't just spend money on any exchanges source code out there where the security and other stuff are still questionable.
You need to make sure to focus with securities, hackers are circling around and always looking for possible victims.
10k dollars are not even enough to have a good exchange
If aiming for decent and reliable exchange, it take higher amount of capital in order to meet everything that are needed from this business.