HAP ac vs RB912UAG-2HPnD + R11e-5HacT

I was dreaming regarding perfect AP, 2.4/5G, with no limitations in budget, aim is to have “perfect” AP.

IMO, options are:
• HAP AC

  • case
  • no need screwdriver :wink:
  • Price
    – Internal antennas, if we can consider as drawback.
    • RB912UAG-2HPnD+R11e-5HacT+ ACSWIM
    – 2.4G dual chain
    –Expensive
    -What case to use for 5 antennas
  • Better RX ?

The aim is to provide coverage of 135m2 flat, with a plenty of concrete walls. Probably using high-power TX will not help unit finding a way to increase RX ?
What do you think regarding Internal antennas vs External (ACSWIM for example)