Can anyone point me to some resources on how to set this up?

I will be installing about 35 cameras. NAS will be used as a redundant storage that doesnt need any more than 720p at 8fps. 

I'd like to attach it to a network via UBNT radios at a nearby building. 

Also, any recommendations on what units I can use? WD has them for under $1000 with the hdd but only for 30 cameras, but Hik is selling NAS for $6000