School transport day

[KST80]

Grove Wood Primary School in Rayleigh, Essex are have a transport day on Monday 18th May between 0800 and midday (ish).
It's a long shot but we are looking for a sample of different vehicles to attend to show the children.
Our site manager has (hopefully) got a tank and some lorries etc, but if anyone is free and happy to pop along we would be very grateful. Or any recommendations of who to approach.

Thanks.

Kev.