Tamiya Scania R620 project helping

[SCANIA R620]

Hello friends

I just now purchased Tamiya SCANIA R620 KIT and Tamiya 45028 TEU-302BK Esc.

And I’m looking to purchase MFC-1 and Motorized Support Legs , so I have some questions and I hope your answers help me to purchase the right parts.

1- what is the best remote control work with my truck ? as a sample FM or AM/ Analog or digital / How many channels I need to start the truck with all additional accessories?
How many servos I will need ? and what is the speed,torque for the servos ?....etc.

2- what is the battery type , size , capacity ,Voltage …etc ??, and the suitable charger for it?

3- If you have any more helping tips and ideas I will be appreciate any useful notes.

Regards