Field Equipment: What, more expense you say !

You will need a Starter (big 12v electric motor) with a starter shaft to start your model. You will need a 12v battery, these are smaller than a car battery. A glow starter (a small battery with a attachment for a glowplug), some fuel, a fuel pump (to get the fuel from the bottle into your models fuel tank) and a box to put all this into. This equipment will last you a long time if looked after.