Noob question about devices groups and scenes

Hardware
1

Hi
Complete beginner here.

Setup.
Renovating a house. Expecting 60+ lamps (spots and so forth). I would like to have them in groups and be able to control each group with a number of scenes (Every day, cleaning, party, TV).

Questions.

  1. Should I get a zigbee dongle or a number of gateways for my lights (trådfri/hue)?
  2. Which Zigbee dongle?
  3. What are the limits to the zongle/gateway solutions.

Kind regards J;-)