I set mine up with static IPs for each of the access points. The router is 0.1 then the APs are 0.2, 0.3 & 0.5, (0.4 was already assigned to a bridge.) On the router, set the IP assignment range for DHCP with a minimum IP number that will allow as many static IPs as you may need and will be easy to remember, say 0.50. The static IPs may not be necessary though because the routers will likely provide DHCP reservations.
If I were redoing my wifi network, I'd look at routers and access point by Ubiquiti or Engenius. They both have POE access points for placement in ceilings, where you have access, and outdoor access points and bridges. My understanding is that if you go with Ubiquiti, the control software just takes care of making...