RE: Transmitter question
A 75mHz two channel RX and you'll need to find out what channel the TX is on. Futaba and or Hitec RX's are compatible with this TX. I suggest Hitec's HP-2RNB 2 Ch AM RX plus crystal on the appropriate channel, 6 Volt NiCad battery 600mAh battery, HD switch harness with charge jack and two HS-645 metal geared high powered analog servos. You'll need a battery charger for the RX battery pack. A standard wall charger will work for Hitec but its lacking, an auto peak charger would be best and multi-purpose too.
Do not use alkaline batteries on high torque servos, you want high torque servos for steering and braking. Standard power servos will work but are lacking IMO.