Following feedback from the Warlord Games forum, I revised my list. The Captain was demoted to Second Lieutenant and both officers lose one of their staff. One of the infantry sections lost its transport (which makes it more likely I'll buy the expensive Bedford OY kit now) and a third section was added.

Here's the revised force. It's surprising how many soldiers you can trade in for a demoted Captain...

HQ
Lieutenant (First Lieutenant) + one-man staff (batman)
- transported in Utility Vehicle [Humber staff car]
Second Lieutenant + one-man staff (batman)
- transported in Utility Vehicle [Humber Tilley]
Medic + one orderly
Artillery FO + assistant
- transported in Universal Carrier

Infantry
Three 10-man sections including LMG
One Boys AT Rifle team
One 2" Light Mortar team
- one section and heavy weapon transported in single 3-ton Lorry [Bedford QLTs masquerading as Bedford OY]
One Vickers MMG
- transported in 15cwt Truck [CMP 15cwt masquerading as Bedford MW 13cwt]

Artillery
2-pounder QF AT gun
- towed by 15cwt Truck [CMP 15cwt masquerading as Bedford MW 13cwt]

Armour - tank
Vickers MkIVb Light Tank


Essentially the same as the first draft, except that only one of the infantry sections can now ride around in a lorry. Probably not the end of the world, especially as the lorry can always do 'shuttle-runs' if necessary.

That extra infantry section will really add to my firepower, especially if I take the Rapid Fire national characteristic, and the HQ sections will hopefully have slightly better survivability. I'll have to ensure that any German snipers have an up-close and personal meeting with the mortar or Vickers MkVIb early on.