The airfield needs some sort of ambulance(s), the only ones available as kits are from Accurate Armour and Matador Models, both the K2 ambulance and both expensive.
I have bitten the bullet and will attempt the Accurate Armour Austin K2Y, 4x2 Heavy Ambulance.
The kit is resin and brass.
I started by identifying all the parts.
I found one part, the bell was missing, Accurate Armour will send another, it is a tiny part.
I lay out all the parts and number them on some paper.
It also helps you familiarise yourself with the parts.