AP Omnitik + SXT max up to 10 Clients

Hello Everyone
I don’t know if my topic is in right place but Beginner Basic is looks ok for me.
Looking for some one who can help me to setup small internet network.
My story is:
Have Fiber connection 80Mb/20Mb in one place and want to split this connection for max up to 10 clients with max 15Mb/4Mb, with my friends so we split charges to nothing.
Have Omnitik Antenna for AP and SXT Antennas for clients.
I was try to do that my self but with no luck, is working at the moment but is always disconnect someone or some devices in network are not connecting at all (devices getting strange IP’s).
Is connected to supplied by internet provider router and after that to omnitik.
Looking for someone who know mikrotik system and this setup is probably nothing for him but for me is to much.
My internet provider don’t know nothing about this, so will need to do masquerade to hide this.
I’d like to set my own private ip pool from omnitik and not from router provided from ISP like it is now.
Will need good stable setup, so will have no problem at all. Have all equipment and at the moment is 4 clients and distance is max up to 2 km to last client.
Everything probably can be done by TeamViewer or even send setup files by email
I know is nothing for free but we can discuss about that latter on.
Please help

no body wants to help?

contact me.

I can offer a help too. Write your Skype nickname here and I will contact you. Teamviewer is fine to do the setup.