I'm still scratching my head as to the type of control setup.
Thinking one handed operations, or maybe no handed(food for thought).
Thinking wireless operations(able to go under brush, low branches, with me not on it.)
my current controller is not up to the job, needs 2 hands.
Thinking to start, Ill try some type of harness holding the controller.
the Servo motors found on ebay for 400.00 for a set(one right, one left)
the motor speed controller from Amazon was 200.00, the motion controller
from Dimension Engineering was 25.00, batteries(2) from walmart
was hoping to keep build budget at $1500.00 with using stuff I have or can find.