I am a Mikrotik certified engineer and have +10 years of experience in networking, especially wireless using Mikrotik equipment. I have been running my own WISP network for six years now. If you need advice or help with creating your own wireless network, be it a link between your home and office or a bigger project like between two or more cities, I can help you find the right equipment and configure it.
The price depends on the scope of the project.
Edit: The list of businesses I got up and running with their wireless solutions is available on request.