What antenna for 50m parking ?

Hi all,
I need install 5 GHz AP for vehicles in dept (car parking) for max 50 meters from antenna as you see on the picture.
I’m looking for integrated solutions so my choose is of OmniTik(7.5dBi) or SXT SAr2 90degrees(14dBi).
There are about 35 client, so how many 1 or 2 AP should be installed?
The problem is that the gain of antenna is high, and not for that small area.
Or maybe BaseBox5 and small 2x omi 2dBi antenas would be better for that?
What to chosen?

Best Regards
jaka antena.png

I should go for omnitik.

This is an all in one solution and you can later add more AP if you needed
Set the omnitik not on 13 meter hight this is to high 4 a 5 meters is good

Thanks for replay.
I will set it as You suggested.
Do you think that decrease TX power could help?
I wonder about interference omni antenna and reflect microwaves from the wall.

Set the omnitik in accordance with legal standards.
Set it to a bracket at a distance of about 20 to 30 cm from the wall.
See photo without nanostation2 M
omnitik.png