well if your looking for guide please visit
blogs.infinitysolution.co.cc
i hope you will find alot of stuff from there which is quite help full to you 
You can use 10.10.10.0/24 but I would make the router 10.10.10.1 and not .10. There is no technical reason, besides easier set up.
You’ll also need to update dhcp, pool, and your nat rule.