Things needed for Glow powered flight:
Plane
Transmitter, receiver, receiver battery, servos. (most radios can be purchased with all this in it)
engine
Propellers (more than 1)
fuel line
Some form of starter. (chicken stick will do, electric starters are probably the safest and easiest)
Fueler (some way to get fuel from jug to plane)
Glow plug heater

Electric flight
Plane
Radio system, as described under glow, no receiver battery needed
motor
speed controller
Propellers (more than 1)
Flight batteries (at least 2 or 3)
Charger for flight batteries
Some way to charge flight batteries at field, (My wife dropped me off one day with my small electric plane, and no one else was there
and there is no power outlets at the field thank god I have 5 batteries for that plane)