Hi Mike.
Black 400 motor, deans product / recommended motor although others of a similar size could be used.
ESC=
Elctronic
Speed
Controller
nycexl coupling = deans own product to join motor to prop shaft although the most common product is the Huco coupler.
2000 ah battery nimh = 2 amp / hour
Nickel-
Metal
Hydride commonly called a race pack

huco coupler
nimh pack
frank