Hi there, and welcome Here.
So looks like a fun project. Is it just one set of Hive boxes or more locations? if so you may want to consider , Lorawan instead of Wifi if the distances are great. the Xiao version with the lora sandwich board with external antenna may be the way to go. 3D print an enclosure that works with your sensor connections and Xiao can handle all the RF tasks EASY!
Check out the other threads on Point to point lora and mesh if the distances ar smaller.
HTH
GL 
PJ 
you can do a one to many star configuration or Master/ Slaves topology. 