P2P and P2MP design

Hello @mikrotik_com and All

We need to upgrade our P2MP links to AC.
Which and how many APs need to install at Point-T.
Point-E is 2km far and Point-C is 2.5km. Currently Rb433 are used in all locations.
Point-A to Point-T will be trunk route. and Point T will be used for base transmitter
Point B,C,D,E are remote locations.
P2P.jpg

What is the distance Point A to T?

What Bandwith is needed?